There will be a HazMat fee per item when shipping a dangerous goods. The HazMat fee will be charged to your UPS/DHL/FedEx collect account or added to the invoice unless the package is shipped via Ground service. Ship by air in Excepted Quantity (each bottle), which is up to 1g/1mL for class 6.1 packing group I or II, and up to 25g/25ml for all other HazMat items.

Type	HazMat fee for 500 gram (Estimated)
Excepted Quantity	USD 0.00
Limited Quantity	USD 15-60
Inaccessible (Haz class 6.1), Domestic	USD 80+
Inaccessible (Haz class 6.1), International	USD 150+
Accessible (Haz class 3, 4, 5 or 8), Domestic	USD 100+
Accessible (Haz class 3, 4, 5 or 8), International	USD 200+

*Storage: {[sel_prStorage]}

*Shipping: {[sel_prShipping]}

4.5 *For Research Use Only !

{[proInfo.pro_purity]}

Cat. No.: {[proInfo.prAm]} Purity: {[proInfo.pro_purity]}

Change View

Size

Price

VIP Price

DE Stock

US Stock

Asia Stock

Global Stock

In Stock

{[ item.pr_size ]}

Inquiry {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate,item.pr_is_large_size_no_price, item.vip_usd) ]}

{[ item.pr_size ]}

In Stock

- +

Please Login or Create an Account to: See VIP prices and availability

Quality Control of 5-(tert-Butoxy)-5-oxopentanoic acid Purity: 95% SDS Specification

COA

Search for reports by entering the product batch number.
Batch number can be found on the product's label following the word 'Batch'.

NMR

Search for reports by entering the product batch number.
Batch number can be found on the product's label following the word 'Batch'.

CNMR

Search for reports by entering the product batch number.
Batch number can be found on the product's label following the word 'Batch'.

HPLC

Search for reports by entering the product batch number.
Batch number can be found on the product's label following the word 'Batch'.

LC-MS

Search for reports by entering the product batch number.
Batch number can be found on the product's label following the word 'Batch'.

1-2 Day Shipping
High Quality
Technical Support

Product Details of 5-(tert-Butoxy)-5-oxopentanoic acid

CAS No. :	63128-51-8
Formula :	C₉H₁₆O₄
M.W :	188.22
SMILES Code :	O=C(O)CCCC(OC(C)(C)C)=O
MDL No. :	MFCD09759103
InChI Key :	VZHNAVSRNGLHRD-UHFFFAOYSA-N
Pubchem ID :	11424021

Safety of 5-(tert-Butoxy)-5-oxopentanoic acid

GHS Pictogram:
Signal Word:	Danger
Hazard Statements:	H318
Precautionary Statements:	P280-P305+P351+P338
Class:	8
UN#:	3265
Packing Group:	Ⅱ

Application In Synthesis of 5-(tert-Butoxy)-5-oxopentanoic acid

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

Downstream synthetic route of [ 63128-51-8 ]

[ 63128-51-8 ] Synthesis Path-Downstream 1~54

1
[ 63128-51-8 ]
[ 110-94-1 ]
[ 115-11-7 ]

References: [1]Recueil des Travaux Chimiques des Pays-Bas,1944,vol. 63,p. 189.

2
[ 1070-62-8 ]
[ 75-65-0 ]
[ 63128-51-8 ]

References: [1]Justus Liebigs Annalen der Chemie,1977,vol. No.6,p. 897 - 903.

3
[ 64-69-7 ]
[ 1663-39-4 ]
[ 63128-51-8 ]

References: [1]Tetrahedron,1993,vol. 49,p. 8465 - 8470.

4
[ 108-55-4 ]
[ 75-65-0 ]
[ 63128-51-8 ]

Yield	Reaction Conditions	Operation in experiment
46%	With zinc(II) chloride; at 60℃;Inert atmosphere;	ZnCl2 (4.77 mmol, 0.65 g) and glutaric anhydride (30.93 mmol, 3.53 g) were added to dried and freshly distilled tert-butyl alcohol (186 mmol, 17.8 mL) under an argon atmosphere. The reaction mixture was stirred at 60C overnight and then poured into saturated aqueous solution of NaHCO3 (60 mL) and washed with CH2Cl2 (2x40 mL). The aqueous phase was acidified with conc. H2SO4 (pH = 1) and extracted with CH2Cl2 (3 x 50 mL). The combined organic phases were washed with brine (15 mL), dried over Na2SO4 and concentrated give 5-tert-butoxy-5-oxopentanoic acid (2.67 g, 46%) as a colourless oil; 1H NMR (CDCl3): delta = 1.45 (s, 3H), 1.92 (m, 2H), 2.31 (t, J = 7.5 Hz, 2H), 2.42 (t, J = 7.5 Hz, 2H).
27%	With dmap; 1-hydroxy-pyrrolidine-2,5-dione; triethylamine; In toluene; at 20℃; for 8.5h;	A mixture of glutaric anhydride (10 g, 87.6 mmol), N-hydroxysuccinimide (3 g, 2.1 mmol), 4-dimethylaminopyridine (1.07 g, 8.8 mmol), anhydrous tert-butanol (24 mL, 262 mmol), and triethylamine (3.6 mL, 25.8 mmol) in dry toluene was mixed at room temperature for 30 min, then boiled for 8 hours, and allowed to stand over night at room temperature. The mixture was diluted with ethyl acetate (250 mL), washed with a 10% solution of citric acid (3×100 mL), then with a saturated salt solution (2×50 mL), and dried over anhydrous sodium sulfate, and the solvent was removed under vacuum. The product was isolated by flash chromatography on silica gel with an elution mixture of ethyl acetate-hexane (1:1). The yield of ether (1) in the form of colorless oil was 4.5 g (27%), [M+H]+=187.49.

References: [1]Journal of the Chemical Society. Perkin transactions I,1997,p. 1501 - 1510.
[2]Tetrahedron,2015,vol. 71,p. 8871 - 8875.
[3]Chemistry - A European Journal,2020.
[4]Journal of the American Chemical Society,2007,vol. 129,p. 6050 - 6055.
[5]Patent: US2017/183318,2017,A1 .Location in patent: Paragraph 0207; 0208.
[6]Helvetica Chimica Acta,2004,vol. 87,p. 1545 - 1560.
[7]Journal of Medicinal Chemistry,2019,vol. 62,p. 6597 - 6614.

5
[ 63128-51-8 ]
[ 6638-79-5 ]
[ 192123-40-3 ]

Yield	Reaction Conditions	Operation in experiment
95%	With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine; In dichloromethane; at 20℃; for 2h;	EXAMPLE 40; Weinreb amide S2[00250] Weinreb amide S2: Prepared by a modification of a literature method. The starting carboxylic acid Sl (4.4 g, 23.4 mmol) was dissolved in CH2Cl2 (100 mL). N,O- dimethylhydroxylamineetaCl (2.51 g, 25.7 mmol), 1-hydroxybenzotriazole hydrate (3.93 g, <n="53"/>25.7 mmol), diisopropylethylamine (9.0 mL, 51.7 mmol), and EDCetaC1 (4.93 g, 25.7 mmol) were added sequentially to the reaction mixture. The solution was allowed to stir at room temperature for 2 h and then concentrated under vacuum to remove most of the CH2CI2. The crude material was diluted with EtOAc (300 mL), and washed successively with 5% aqueous NaHSO4 (3x), 5% aqueous NaHCtheta3 (3x), and brine. The organic layer was dried over MgSO4, filtered and concentrated to afford 5.14 g (95% yield) of the product as a pale yellow oil which was used without further purification. TLC Rf = 0.44 (EtOAc/hexanes, v/v, 1:2). 1HNMR (300MHz, CDCl3) delta 3.68 (s, 3H), 3.18 (s, 3H), 2.48 (t, J= 7.4 Hz, 2H), 2.30 (t, J = 7.4 Hz, 2H), 1.92 (m, 2H), 1.45 (s, 9H), FIG. 57. 13CNMR (75 MHz, CDCl3) delta 174.0, 172.7, 80.2, 77.5, 61.3, 35.0, 32.3, 31.0, 28.2, 20.2, FIG. 58. ESI-TOF-MS: [M+H]+ calculated 232.2, found 232.4.

References: [1]Journal of the American Chemical Society,2007,vol. 129,p. 6050 - 6055.
[2]Patent: WO2007/112358,2007,A1 .Location in patent: Page/Page column 51-52.
[3]Journal of the Chemical Society. Perkin transactions I,1997,p. 1501 - 1510.
[4]Journal of the Chemical Society. Perkin transactions I,1997,p. 1501 - 1510.

6
[ 63128-51-8 ]
[ 126-81-8 ]
[ 208648-73-1 ]

References: [1]Tetrahedron Letters,2001,vol. 42,p. 2189 - 2192.
[2]Tetrahedron Letters,1998,vol. 39,p. 3585 - 3588.

9
[ 43052-39-7 ]
alkali [ No CAS ]
aqueous dioxane [ No CAS ]
[ 63128-51-8 ]

References: [1]Recueil des Travaux Chimiques des Pays-Bas,1944,vol. 63,p. 189.

10
di-tert-butyl glutarate [ No CAS ]
[ 63128-51-8 ]

References: [1]Recueil des Travaux Chimiques des Pays-Bas,1939,vol. 58,p. 1058.

11
[ 63128-51-8 ]
[ 191090-32-1 ]
[ 637337-54-3 ]

References: [1]Helvetica Chimica Acta,2004,vol. 87,p. 1545 - 1560.

12
[ 41355-50-4 ]
[ 63128-51-8 ]
[ 902760-42-3 ]

References: [1]Bioorganic and Medicinal Chemistry,2006,vol. 14,p. 4775 - 4780.

13
[ 53715-97-2 ]
[ 75-65-0 ]
[ 63128-51-8 ]

Yield	Reaction Conditions	Operation in experiment
27%	With dmap; 1-hydroxy-pyrrolidine-2,5-dione; triethylamine; In toluene; at 115℃; for 16h;	EXAMPLE 39; Carboxylic acid SlO O>k O ^ ^ OH S1[00248] Carboxylic acid Sl: Prepared as previously described in the literature. Glutaric anhydride (10.0 g, 87.6 mmol) was weighed into a dry flask and purged with N2. Dry toluene (50 mL) was added followed by N-hydroxysuccinimide (3.0 g, 26.1 mmol), 4- dimethylaminopyridine (1.07 g, 8.8 mmol), anhydrous tert-butanol (24.3 mL, 262.3 mmol), and triethylamine (3.6 ml, 25.8 mmol). The flask was fitted with a reflux condenser, heated to 115C, and allowed to stir for 16 h under N2. The solution was cooled to room temperature, diluted with 300 mL EtOAc, and washed with 5% aqueous NaHSO4 (3x) followed by brine. The organic layer was dried over MgSO4, filtered and concentrated. The crude material was purified by chromatography eluting with 1: 1 hexanes/EtOAc to yield 4.48 g (27% yield) of the product as a colorless oil. TLC Rf = 0.34 (EtOAc/hexanes, v/v, 1 : 1). 1HNMR (300MHz, CDCl3): delta 10.83 (br s, IH), 2.42 (t, J= 7.4 Hz, 2H), 2.31 (t, J= 2.31 Hz, 2H), 1.92 (m, 2H), 1.45 (s, 9H). FIG. 55. 13CNMR (75 MHz, CDCl3): delta 179.2, 172.3, 80.5, 34.4, 33.0, 28.0, 20.0. FIG. 56. ESI-TOF-MS: [M-H]" calculated 187.1, found 187.4.

References: [1]Patent: WO2007/112358,2007,A1 .Location in patent: Page/Page column 51.

14
[ 63128-51-8 ]
C₂₅H₃₃NO₃ [ No CAS ]

References: [1]Journal of the American Chemical Society,2007,vol. 129,p. 6050 - 6055.

15
[ 63128-51-8 ]
[ 941292-97-3 ]

References: [1]Journal of the American Chemical Society,2007,vol. 129,p. 6050 - 6055.

16
[ 63128-51-8 ]
(R)-β-carboxyethyl-tert-butyl ester-γ-(S)-N-benzyl-α-methylbenzyl amino-propylalcohol [ No CAS ]

References: [1]Journal of the American Chemical Society,2007,vol. 129,p. 6050 - 6055.

17
[ 63128-51-8 ]
C₁₀H₂₁NO₃ [ No CAS ]

References: [1]Journal of the American Chemical Society,2007,vol. 129,p. 6050 - 6055.

18
[ 63128-51-8 ]
[ 941292-98-4 ]

References: [1]Journal of the American Chemical Society,2007,vol. 129,p. 6050 - 6055.

19
[ 63128-51-8 ]
[ 192123-41-4 ]

References: [1]Journal of the American Chemical Society,2007,vol. 129,p. 6050 - 6055.
[2]Journal of the Chemical Society. Perkin transactions I,1997,p. 1501 - 1510.
[3]Journal of Medicinal Chemistry,2019,vol. 62,p. 6597 - 6614.

20
[ 63128-51-8 ]
(S)-2-[(9H-fluoren-9-ylmethoxycarbonyl)aminomethyl]-pentanedioic acid 5-tert-butyl ester [ No CAS ]

References: [1]Journal of the American Chemical Society,2007,vol. 129,p. 6050 - 6055.
[2]Helvetica Chimica Acta,2004,vol. 87,p. 1545 - 1560.

21
[ 63128-51-8 ]
[ 637337-13-4 ]

References: [1]Helvetica Chimica Acta,2004,vol. 87,p. 1545 - 1560.

22
[ 63128-51-8 ]
2-aminomethyl-pentanedioic acid 5-tert-butyl ester [ No CAS ]

References: [1]Helvetica Chimica Acta,2004,vol. 87,p. 1545 - 1560.

23
[ 63128-51-8 ]
[ 637337-69-0 ]

References: [1]Helvetica Chimica Acta,2004,vol. 87,p. 1545 - 1560.

24
[ 63128-51-8 ]
(S)-2-(Benzyloxycarbonylamino-methyl)-pentanedioic acid 1-benzyl ester [ No CAS ]

References: [1]Helvetica Chimica Acta,2004,vol. 87,p. 1545 - 1560.

25
[ 63128-51-8 ]
H-(S)β²hGln(Trt)-OH [ No CAS ]

References: [1]Helvetica Chimica Acta,2004,vol. 87,p. 1545 - 1560.

26
[ 63128-51-8 ]
[ 756531-84-7 ]

References: [1]Helvetica Chimica Acta,2004,vol. 87,p. 1545 - 1560.

27
[ 63128-51-8 ]
[ 756531-82-5 ]

References: [1]Helvetica Chimica Acta,2004,vol. 87,p. 1545 - 1560.

28
[ 63128-51-8 ]
[ 756531-77-8 ]

References: [1]Helvetica Chimica Acta,2004,vol. 87,p. 1545 - 1560.

29
[ 63128-51-8 ]
[ 756531-78-9 ]

References: [1]Helvetica Chimica Acta,2004,vol. 87,p. 1545 - 1560.

30
[ 63128-51-8 ]
[ 756531-86-9 ]

References: [1]Helvetica Chimica Acta,2004,vol. 87,p. 1545 - 1560.

31
[ 63128-51-8 ]
2-[(9H-fluoren-9-ylmethoxycarbonylamino)-methyl]-4-(trityl-carbamoyl)-butyric acid [ No CAS ]

References: [1]Helvetica Chimica Acta,2004,vol. 87,p. 1545 - 1560.

32
[ 63128-51-8 ]
[ 208648-74-2 ]

References: [1]Tetrahedron Letters,2001,vol. 42,p. 2189 - 2192.

33
[ 63128-51-8 ]
[ 338958-01-3 ]

References: [1]Tetrahedron Letters,2001,vol. 42,p. 2189 - 2192.

34
[ 63128-51-8 ]
2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-methyl-pentanoic acid 4-[4-carboxy-1-(4,4-dimethyl-2,6-dioxo-cyclohexylidene)-butylamino]-benzyl ester [ No CAS ]

References: [1]Tetrahedron Letters,2001,vol. 42,p. 2189 - 2192.

35
[ 63128-51-8 ]
tert-butyl 5-(4-(N-9-fluorenylmethoxycarbonylleucinyl-oxymethyl)anilino)-5-(4,4-dimethylcyclohexylidene-2,6-dioxo)pentanoate [ No CAS ]

References: [1]Tetrahedron Letters,2001,vol. 42,p. 2189 - 2192.

36
[ 63128-51-8 ]
5-(4,4-Dimethyl-2,6-dioxo-cyclohexylidene)-5-propylamino-pentanoic acid [ No CAS ]

References: [1]Tetrahedron Letters,1998,vol. 39,p. 3585 - 3588.

37
[ 63128-51-8 ]
5-(4,4-Dimethyl-2,6-dioxo-cyclohexylidene)-5-propylamino-pentanoic acid tert-butyl ester [ No CAS ]

References: [1]Tetrahedron Letters,1998,vol. 39,p. 3585 - 3588.

38
[ 63128-51-8 ]
[ 733723-03-0 ]

References: [1]Journal of the Chemical Society. Perkin transactions I,1997,p. 1501 - 1510.

39
[ 63128-51-8 ]
N-[4-(tert-Butoxycarbonyl)butyl]methionine [ No CAS ]

References: [1]Journal of the Chemical Society. Perkin transactions I,1997,p. 1501 - 1510.

40
[ 63128-51-8 ]
(S)-2-[(4-tert-Butoxycarbonyl-butyl)-trimethylsilanyl-amino]-3-methyl-pentanoic acid [ No CAS ]

References: [1]Journal of the Chemical Society. Perkin transactions I,1997,p. 1501 - 1510.

41
[ 59378-98-2 ]
[ 63128-51-8 ]

Yield	Reaction Conditions	Operation in experiment
15%		65.7 g (325 mmol) 2-c in 200 ml methanol were treated with 235 ml (970 mmol) 10% LiOH solution and stirred under ice cooling for 4 h. Using 2N HCl the reaction mixture was neutralized to a pH of 6.8. Methanol was distilled off and the aqueous residue was diluted with dichloromethane. At 0 C. the pH was brought to 3.8 with 10% citric acid. Standard work up yielded 8.9 g (15%) 2-d. ES-(-)MS (M-H)-187

References: [1]Patent: US2006/100158,2006,A1 .Location in patent: Page/Page column 31.

42
C₁₂H₂₄N₂O₃ [ No CAS ]
[ 63128-51-8 ]
C₂₁H₃₈N₂O₆ [ No CAS ]

Yield	Reaction Conditions	Operation in experiment
60%	With 1-[bis(dimethylamino)methylen]-1-H-benzotriazolim-tetrafluoroborate-3-oxide; benzotriazol-1-ol; N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; at 20℃;	16.0 g (57.0 mmol) 2-b, 10.8 g (57.2 mmol) 2-d were dissolved in 320 ml THF, 14.9 ml (115.0 mmol) DIPEA, 18.6 g (58.0 mmol) TBTU and 7.7 g (57.0 mmol) HOBt were added and the mixture was stirred at room temperature over night. The mixture was evaporated and extracted with ethylacetate and saturated bicarbonate solution. The combined organic phases were concentrated. The residue was purified by MPLC (silica gel, cyclohexane/ethylacetate=7:3) to yield 14.2 g (60%) of 2-e. ES-MS (M+H)+415

References: [1]Patent: US2006/100158,2006,A1 .Location in patent: Page/Page column 31.

43
C₅₃H₆₀N₃O₇Pol [ No CAS ]
[ 63128-51-8 ]
C₄₇H₆₄N₃O₈Pol [ No CAS ]

Yield	Reaction Conditions	Operation in experiment
		The synthesis of example 21 involves the preparation of a protected peptide fragment on solid phase and afterwards an acylation at the C-terminus in solution phase (see scheme B) The protected peptide fragment was synthesized by solid phase synthesis on a commercially available chlorotrityl-polystyrene resin (TCP resin, PepChem NMI TT GmbH)(10 g, 14 mmol). The first amino acid Fmoc-Statine (5.7 g, 28 mmol) was dissolved in dichloromethane (50 ml) and Dipea (15 ml) and was added to the resin. The suspension was shaken for 2 hours and methanol (20 ml) was added. After additional 20 minutes of agitation the resin was filtered and washed with dichloromethane (10×) and DMF (5×). Fmoc deprotections were performed by treatment of the resin with 30% piperidine in DMF for 2 and 20 minutes followed by washing the resin with DMF (10×). The acylation reactions were effected by treatment of the resin with a solution of TBTU (4 equiv.), HOBT (4 equiv.), Dipea (12 equiv.) and the corresponding Fmoc-amino acid or carboxylic acid (4 equiv.) in DMF at a concentration of 0.5 mol/l. In case of example 21 Fmoc-Nva, Fmoc-Ile and glutaric acid mono-tert.-butylester were coupled according to the peptide sequence. After completion of the peptide assembly the resin was treated with a solution of 30% hexafluoroisopropanol in dichloromethane (50 ml) for 3 hours. The resin was filtered, washed with dichloromethane and the filtrate was evaporated under reduced pressure. The crude product was purified by preparative reversed phase HPLC. The coupling of the protected peptide fragment (44.6 mg; 0.08 mmol) with amines (1.1 equiv., 0.088 mmol) was performed with TBTU (1.1 equiv., 0.088 mmol) in DMF with Dipea (2.5 equiv.) as base for 4 hours. In case of example 21 benzyl amine was applied. The solution was evaporated under reduced pressure, dissolved in methanol and again evaporated. The deprotection of the tBu-ester was performed with 90% TFA/water (2 ml) within 2 hours. The solution was evaporated and the residue was treated with saturated aq. LiOH solution (1 ml) and methanol (1 ml) for 1 hour. 95% TFA/water (300 mul) was added and the solution was evaporated under reduced pressure. The crude product was purified by preparative reversed phase HPLC applying an acetonitrile/water gradient. The product gave satisfactory analytical data. ES-MS: m/z=591.8 ([M+H]+)

References: [1]Patent: US2006/100158,2006,A1 .Location in patent: Page/Page column 43-44.

44
[ 53715-97-2 ]
[ 63128-51-8 ]

Yield	Reaction Conditions	Operation in experiment
	With potassium tert-butylate; In tetrahydrofuran; water; ethyl acetate;	EXAMPLE 31 1-[N-(3-tert-Butoxycarbonylpropyl)carbamoyl]-5-fluorouracil Glutaric anhydride (11.41 g.) was added portion-wise to a solution of potassium tert-butoxide (14.02 g.) in tetrahydrofuran (100 ml.) at ambient temperature. After the exothermic reaction was ceased, the reaction mixture was stirred at 40 C. for 15 minutes. Tetrahydrofuran was distilled off under reduced pressure. The residue was dissolved in water. After ethyl acetate was added, the solution was adjusted to pH 9 with aqueous potassium carbonate solution under ice-cooling. The separated water layer was washed with ethyl acetate, treated with activated charcoal, overlapped with ethyl acetate, and then adjusted to pH 4.0 with 10% hydrochloric acid under ice-cooling. The ethyl acetate layer was dried over magnesium sulfate, treated with activated charcoal, filtered and concentrated under reduced pressure to give glutaric acid mono-tert-butyl ester (10 g.).

References: [1]Patent: US4349552,1982,A .

Yield	Reaction Conditions	Operation in experiment
40%		EXAMPLE 13 Synthesis of Mono-t-butyl Glutarate Glutaric acid anhydride (5.0 g, 44 mmol) and dimethylaminopyridine (5.4 g, 44 mmol) were dissolved in 70 ml of dichloromethane. To this, under cooling at 0 C., was added t-butyl alcohol (3.3 g, 44 mmol). Being intact, stirring continued at room temperature overnight, and then, a majority of methylene chloride was recovered and 100 ml of water was added. The aqueous phase was acidified with citric acid and extracted with ethyl acetate. After the organic phase was washed with saturated brine and dried over anhydrous sodium sulfate, solvent was removed to afford 3.3 g of the t-butyl ester (yield: 40%).

Yield	Reaction Conditions	Operation in experiment
75%		A 1M aqueous solution of lithium hydroxide (12.72 ml, 12.72 mmol) was added to a solution of diester (A8) (2.57 g, 12.72 mmol) in dioxane (20 ml) at 0 C. The solution was allowed to warm to ambient temperature and stirred for sixteen hours. The solution was concentrated under reduced pressure and aqueous saturated sodium hydrogen carbonate (20 ml) was added. The resultant solution was extracted with ethyl acetate (210 ml). The combined organic extracts were washed with aqueous saturated sodium hydrogen carbonate (10 ml). The aqueous extracts were combined and acidified to pH 4 with 10% aqueous citric acid. The acidified solution was extracted with ethyl acetate (520 ml). The combined organic extracts were dried (MgSO4), filtered and the solvent was removed under reduced pressure to afford mono-tert-butylglutarate acid (A9) as a clear liquid (1.80 g, 75%), RF 0.6 (Ethyl acetate, KMnO4).

47
[ 63128-51-8 ]
C₁₉H₃₀N₂O₉S [ No CAS ]
[ 1048667-36-2 ]

References: [1]European Journal of Organic Chemistry,2008,p. 2973 - 2982.

48
[ 63128-51-8 ]
C₁₉H₃₀N₂O₉S [ No CAS ]
[ 1048667-37-3 ]

References: [1]European Journal of Organic Chemistry,2008,p. 2973 - 2982.

49
[ 63128-51-8 ]
[ 76197-90-5 ]

References: [1]Tetrahedron Letters,2010,vol. 51,p. 385 - 386.

50
[ 75-91-2 ]
[ 504-02-9 ]
[ 110-94-1 ]
[ 3885-29-8 ]
[ 868-57-5 ]
[ 63128-51-8 ]
[ 75-07-0 ]
[ 141-78-6 ]
[ 75-65-0 ]

References: [1]Russian Journal of General Chemistry,2011,vol. 81,p. 550 - 558.

51
[ 63128-51-8 ]
[ 1408065-79-1 ]

References: [1]Organic and Biomolecular Chemistry,2012,vol. 10,p. 8216 - 8235.

52
[ 63128-51-8 ]
[ 1408065-29-1 ]

References: [1]Organic and Biomolecular Chemistry,2012,vol. 10,p. 8216 - 8235.

53
[ 63128-51-8 ]
[ 1408065-31-5 ]

References: [1]Organic and Biomolecular Chemistry,2012,vol. 10,p. 8216 - 8235.

54
[ 63128-51-8 ]
[ 1408065-33-7 ]

References: [1]Organic and Biomolecular Chemistry,2012,vol. 10,p. 8216 - 8235.

Historical Records

Technical Information

• Arndt-Eistert Homologation • Hunsdiecker-Borodin Reaction • Passerini Reaction • Preparation of Amines • Preparation of Carboxylic Acids • Reactions of Amines • Reactions of Carboxylic Acids • Schmidt Reaction • Specialized Acylation Reagents-Ketenes • Ugi Reaction

Precautionary Statements-General
Code	Phrase
P101	If medical advice is needed,have product container or label at hand.
P102	Keep out of reach of children.
P103	Read label before use
Prevention
Code	Phrase
P201	Obtain special instructions before use.
P202	Do not handle until all safety precautions have been read and understood.
P210	Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
P211	Do not spray on an open flame or other ignition source.
P220	Keep/Store away from clothing/combustible materials.
P221	Take any precaution to avoid mixing with combustibles
P222	Do not allow contact with air.
P223	Keep away from any possible contact with water, because of violent reaction and possible flash fire.
P230	Keep wetted
P231	Handle under inert gas.
P232	Protect from moisture.
P233	Keep container tightly closed.
P234	Keep only in original container.
P235	Keep cool
P240	Ground/bond container and receiving equipment.
P241	Use explosion-proof electrical/ventilating/lighting/equipment.
P242	Use only non-sparking tools.
P243	Take precautionary measures against static discharge.
P244	Keep reduction valves free from grease and oil.
P250	Do not subject to grinding/shock/friction.
P251	Pressurized container: Do not pierce or burn, even after use.
P260	Do not breathe dust/fume/gas/mist/vapours/spray.
P261	Avoid breathing dust/fume/gas/mist/vapours/spray.
P262	Do not get in eyes, on skin, or on clothing.
P263	Avoid contact during pregnancy/while nursing.
P264	Wash hands thoroughly after handling.
P265	Wash skin thouroughly after handling.
P270	Do not eat, drink or smoke when using this product.
P271	Use only outdoors or in a well-ventilated area.
P272	Contaminated work clothing should not be allowed out of the workplace.
P273	Avoid release to the environment.
P280	Wear protective gloves/protective clothing/eye protection/face protection.
P281	Use personal protective equipment as required.
P282	Wear cold insulating gloves/face shield/eye protection.
P283	Wear fire/flame resistant/retardant clothing.
P284	Wear respiratory protection.
P285	In case of inadequate ventilation wear respiratory protection.
P231 + P232	Handle under inert gas. Protect from moisture.
P235 + P410	Keep cool. Protect from sunlight.
Response
Code	Phrase
P301	IF SWALLOWED:
P304	IF INHALED:
P305	IF IN EYES:
P306	IF ON CLOTHING:
P307	IF exposed:
P308	IF exposed or concerned:
P309	IF exposed or if you feel unwell:
P310	Immediately call a POISON CENTER or doctor/physician.
P311	Call a POISON CENTER or doctor/physician.
P312	Call a POISON CENTER or doctor/physician if you feel unwell.
P313	Get medical advice/attention.
P314	Get medical advice/attention if you feel unwell.
P315	Get immediate medical advice/attention.
P320
P302 + P352	IF ON SKIN: wash with plenty of soap and water.
P321
P322
P330	Rinse mouth.
P331	Do NOT induce vomiting.
P332	IF SKIN irritation occurs:
P333	If skin irritation or rash occurs:
P334	Immerse in cool water/wrap n wet bandages.
P335	Brush off loose particles from skin.
P336	Thaw frosted parts with lukewarm water. Do not rub affected area.
P337	If eye irritation persists:
P338	Remove contact lenses, if present and easy to do. Continue rinsing.
P340	Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P341	If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P342	If experiencing respiratory symptoms:
P350	Gently wash with plenty of soap and water.
P351	Rinse cautiously with water for several minutes.
P352	Wash with plenty of soap and water.
P353	Rinse skin with water/shower.
P360	Rinse immediately contaminated clothing and skin with plenty of water before removing clothes.
P361	Remove/Take off immediately all contaminated clothing.
P362	Take off contaminated clothing and wash before reuse.
P363	Wash contaminated clothing before reuse.
P370	In case of fire:
P371	In case of major fire and large quantities:
P372	Explosion risk in case of fire.
P373	DO NOT fight fire when fire reaches explosives.
P374	Fight fire with normal precautions from a reasonable distance.
P376	Stop leak if safe to do so. Oxidising gases (section 2.4) 1
P377	Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P378
P380	Evacuate area.
P381	Eliminate all ignition sources if safe to do so.
P390	Absorb spillage to prevent material damage.
P391	Collect spillage. Hazardous to the aquatic environment
P301 + P310	IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P301 + P312	IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P301 + P330 + P331	IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P302 + P334	IF ON SKIN: Immerse in cool water/wrap in wet bandages.
P302 + P350	IF ON SKIN: Gently wash with plenty of soap and water.
P303 + P361 + P353	IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P304 + P312	IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell.
P304 + P340	IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P304 + P341	IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338	IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P306 + P360	IF ON CLOTHING: Rinse Immediately contaminated CLOTHING and SKIN with plenty of water before removing clothes.
P307 + P311	IF exposed: call a POISON CENTER or doctor/physician.
P308 + P313	IF exposed or concerned: Get medical advice/attention.
P309 + P311	IF exposed or if you feel unwell: call a POISON CENTER or doctor/physician.
P332 + P313	IF SKIN irritation occurs: Get medical advice/attention.
P333 + P313	IF SKIN irritation or rash occurs: Get medical advice/attention.
P335 + P334	Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages.
P337 + P313	IF eye irritation persists: Get medical advice/attention.
P342 + P311	IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.
P370 + P376	In case of fire: Stop leak if safe to Do so.
P370 + P378	In case of fire:
P370 + P380	In case of fire: Evacuate area.
P370 + P380 + P375	In case of fire: Evacuate area. Fight fire remotely due to the risk of explosion.
P371 + P380 + P375	In case of major fire and large quantities: Evacuate area. Fight fire remotely due to the risk of explosion.
Storage
Code	Phrase
P401
P402	Store in a dry place.
P403	Store in a well-ventilated place.
P404	Store in a closed container.
P405	Store locked up.
P406	Store in corrosive resistant/ container with a resistant inner liner.
P407	Maintain air gap between stacks/pallets.
P410	Protect from sunlight.
P411
P412	Do not expose to temperatures exceeding 50 oC/ 122 oF.
P413
P420	Store away from other materials.
P422
P402 + P404	Store in a dry place. Store in a closed container.
P403 + P233	Store in a well-ventilated place. Keep container tightly closed.
P403 + P235	Store in a well-ventilated place. Keep cool.
P410 + P403	Protect from sunlight. Store in a well-ventilated place.
P410 + P412	Protect from sunlight. Do not expose to temperatures exceeding 50 oC/122oF.
P411 + P235	Keep cool.
Disposal
Code	Phrase
P501	Dispose of contents/container to ...
P502	Refer to manufacturer/supplier for information on recovery/recycling

Physical hazards
Code	Phrase
H200	Unstable explosive
H201	Explosive; mass explosion hazard
H202	Explosive; severe projection hazard
H203	Explosive; fire, blast or projection hazard
H204	Fire or projection hazard
H205	May mass explode in fire
H220	Extremely flammable gas
H221	Flammable gas
H222	Extremely flammable aerosol
H223	Flammable aerosol
H224	Extremely flammable liquid and vapour
H225	Highly flammable liquid and vapour
H226	Flammable liquid and vapour
H227	Combustible liquid
H228	Flammable solid
H229	Pressurized container: may burst if heated
H230	May react explosively even in the absence of air
H231	May react explosively even in the absence of air at elevated pressure and/or temperature
H240	Heating may cause an explosion
H241	Heating may cause a fire or explosion
H242	Heating may cause a fire
H250	Catches fire spontaneously if exposed to air
H251	Self-heating; may catch fire
H252	Self-heating in large quantities; may catch fire
H260	In contact with water releases flammable gases which may ignite spontaneously
H261	In contact with water releases flammable gas
H270	May cause or intensify fire; oxidizer
H271	May cause fire or explosion; strong oxidizer
H272	May intensify fire; oxidizer
H280	Contains gas under pressure; may explode if heated
H281	Contains refrigerated gas; may cause cryogenic burns or injury
H290	May be corrosive to metals
Health hazards
Code	Phrase
H300	Fatal if swallowed
H301	Toxic if swallowed
H302	Harmful if swallowed
H303	May be harmful if swallowed
H304	May be fatal if swallowed and enters airways
H305	May be harmful if swallowed and enters airways
H310	Fatal in contact with skin
H311	Toxic in contact with skin
H312	Harmful in contact with skin
H313	May be harmful in contact with skin
H314	Causes severe skin burns and eye damage
H315	Causes skin irritation
H316	Causes mild skin irritation
H317	May cause an allergic skin reaction
H318	Causes serious eye damage
H319	Causes serious eye irritation
H320	Causes eye irritation
H330	Fatal if inhaled
H331	Toxic if inhaled
H332	Harmful if inhaled
H333	May be harmful if inhaled
H334	May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335	May cause respiratory irritation
H336	May cause drowsiness or dizziness
H340	May cause genetic defects
H341	Suspected of causing genetic defects
H350	May cause cancer
H351	Suspected of causing cancer
H360	May damage fertility or the unborn child
H361	Suspected of damaging fertility or the unborn child
H361d	Suspected of damaging the unborn child
H362	May cause harm to breast-fed children
H370	Causes damage to organs
H371	May cause damage to organs
H372	Causes damage to organs through prolonged or repeated exposure
H373	May cause damage to organs through prolonged or repeated exposure
Environmental hazards
Code	Phrase
H400	Very toxic to aquatic life
H401	Toxic to aquatic life
H402	Harmful to aquatic life
H410	Very toxic to aquatic life with long-lasting effects
H411	Toxic to aquatic life with long-lasting effects
H412	Harmful to aquatic life with long-lasting effects
H413	May cause long-lasting harmful effects to aquatic life
H420	Harms public health and the environment by destroying ozone in the upper atmosphere

{[proInfo.proName]}

CAS No.: 63128-51-8

{[proInfo.proName]}

CAS No.: 63128-51-8

Alternative Products

Product Details of 5-(tert-Butoxy)-5-oxopentanoic acid

Safety of 5-(tert-Butoxy)-5-oxopentanoic acid

Application In Synthesis of 5-(tert-Butoxy)-5-oxopentanoic acid

[ 63128-51-8 ] Synthesis Path-Downstream 1~54

Related Products

Historical Records

Technical Information

Categories

Precautionary Statements-General

Prevention

Response

Storage

Disposal

Physical hazards

Health hazards

Environmental hazards

Inquiry

Molarity Calculator

Total Compounds Calculator

Dissolution Calculator