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Chemical Structure| 2104-89-4 Chemical Structure| 2104-89-4

Structure of 2104-89-4

Chemical Structure| 2104-89-4

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Product Details of [ 2104-89-4 ]

CAS No. :2104-89-4
Formula : C4H9NO3
M.W : 119.12
SMILES Code : O=C(OC)C(N)CO
MDL No. :MFCD00044750

Safety of [ 2104-89-4 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H315-H319
Precautionary Statements:P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313

Application In Synthesis of [ 2104-89-4 ]

* 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 [ 2104-89-4 ]

[ 2104-89-4 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 2104-89-4 ]
  • [ 100-52-7 ]
  • [ 123639-56-5 ]
YieldReaction ConditionsOperation in experiment
Example 1; Preparation of 10-{2-[5-(3-Fluoro-phenyl)-pyridin-2-yl]-vinyl}-1,5,10,10a-tetrahydro-oxazolo[3,4-b]isoquinolin-3-one A mixture of D-Serine (7.71 g, 49 mmol), benzaldehyde (7.6 mL, 74 mmol) and NaCNBH3 (9.1 g, 147 mmol) was stirred over the weekend in MeOH (50 mL). The mixture was poured into 200 mL of ether, washed with saturated NaHCO3, and dried with NaHCO3. The solvent was removed leaving a methylester (compound 3) that was purified using column chromatography, resulting in a yield of 3.41 g of the methylester.
Intermediate 1 Methyl Lambda/-(phenylmethyl)-D-serinate; 30.00 g of methyl-D-serinate 16.61 g sodium acetate and 300 ml_ tetrahydrofuran was loaded into the vessel at 200C. 21.49 g (20.56 mL) benzaldehyde was added at 200C and the resulting mixture was cooled down to 0-50C. 3.0 mL acetic acid (99-100%) was added and the reaction mixture was stirred for 1 h at 0-5C.89.91 g sodium tris-acetoxyborohydride was added portion-wise over 15 min. and the reaction mixture was stirred for 2-3 h at 0-50C.To the suspension was added at 0-50C, 375 mL sat. sodium carbonate solution over 45 min. (gas evolution, pH adjusted to 8-9). The quenched mixture was warmed to 20-250C over 0.5 h. 300 mL water and 300 mL tert-butyl methyl ether were added at 20-25C and phases were separated. The organic layer was washed with 150 mL water and the combined aqueous layers were re-extracted with 150 mL terf-butyl methyl ether. The combined organic layers were washed with 90 mL water and the organic layer was concentrated to dryness at 35C under reduced pressure to afford the title compound36.36 g. as a colourless oil.1H-NMR [ppm, CDCI3]: 7.40-7.20, (m, 5H); 3.88-3.81 , (m, 1 H); 3.81-3.68, (m, 2H); 3.72,(s, 3H); 3.67-3.58, (m, 1 H); 3.45-3.37, (m, 1 H); 2.60, (bs, 2H).
(R)-methyi 2-amino-3-hydroxypropanoate (1000 g, 6.43 mofl was dissolved in 5 L of anhydrous methanol and cooled to 0C. Triethylamine (900 mL, 6.43 mol) was added, the reaction was stirred for 40 n:iin, and 650 rnL of benzaidehvde (6.43 mol) was added, The reaction mixture was stirred for 4 h, at which time sodium horohydride (480 g, 12.6 mol) was addedportionwise to? the reaction mixture over a period of 3 h. The solution was partitioned between 5 L of 20% HC I and 5 L of diethyl ether. The organic phase was extracted twice with 2 L portions of 20% HCI. The combined aqueous layers were washed with an additional diethyl ether and the organic layers were discarded. The aqueous layers were carefully neutralized with solid sodium carbonate and extracted three times with diethyl ether. After extraction with brine, the combinedether extracts were drjed over Na2SO4 and evaporated to afford methyl (2R)-3-hydroxy-2- [benzylaminoipropanoate, which was used directly in next step without further purification.
 

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