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[ CAS No. 210488-54-3 ] {[proInfo.proName]}

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Chemical Structure| 210488-54-3
Chemical Structure| 210488-54-3
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Product Details of [ 210488-54-3 ]

CAS No. :210488-54-3 MDL No. :MFCD08057360
Formula : C9H11NO2 Boiling Point : -
Linear Structure Formula :- InChI Key :ZWBXYAKHFVPCBF-ZCFIWIBFSA-N
M.W : 165.19 Pubchem ID :40429596
Synonyms :

Safety of [ 210488-54-3 ]

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

Application In Synthesis of [ 210488-54-3 ]

* 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 [ 210488-54-3 ]

[ 210488-54-3 ] Synthesis Path-Downstream   1~10

  • 1
  • [ 1007881-35-7 ]
  • [ 210488-54-3 ]
YieldReaction ConditionsOperation in experiment
General Procedure 9 (GP9T : Preparation of Free AmineTo a solution of a substituted sulfinamide (1.0 mmol) in methanol (4 ml) was added 4 N HCI in 1,4-dioxane (4 mL) at rt. The obtained reaction solution was stirred at this temperature (TLC control) and then taken up in EtOAc/0,lM aq HCI. To the aqueous phase was added 1 N NaOH until pH 10. The aqueous phase was extracted with EtOAc. The organic phases were dried over MgSO4 and concentrated in vacuo, giving the desired free amine.Preparation 30(R)-l-Benzori.31dιoxol-5-yl-ethylamιne (Compound 431) Compound 428 was treated as described in GP9, giving the title compound as a colorless oil. 13C NMR (DMSOd5): δ = 147.0, 145.3, 143.1, 118.5, 107.6, 106.2, 100.4, 50.4, 26.2.
  • 2
  • (R)-N-((R)-1-(benzo[d][1,3]dioxol-5-yl)ethyl)-2-methylpropane-2-sulfinamide [ No CAS ]
  • [ 210488-54-3 ]
YieldReaction ConditionsOperation in experiment
85% With hydrogenchloride; In methanol; at 0 - 20℃; for 1.25h; To a stirred solution of (R)-N-((R)-1-(benzo[d][1,3]dioxol-5-yl)ethyl)-2-methylpropane-2-sulfinamide (4 g, 14.86 mmol) in MeOH (20 mL), methanolic hydrochloride (18.5 mL, 74.3 mmol, 4M) was added at 0C over 15 min and stirred at rt for 1 h. Completion of the reaction was confirmed by TLC. Then the reaction mixture was concentrated under vacuum at 50C. To the resulting crude, EtOAc (50 mL) was added and filtered and Alteration cake was washed with EtOAc (50 mL). The solid hydrochloride salt was basified by aq. ammonia (30% w/v, 25 mL) and extracted with EtOAC (2 X 50 mL). The combined organic layer was washed with brine solution (1 x 50 mL) and dried over Na2SO4. The solvent was evaporated at under vacuum to give the title compound. Yield: 85% (2.1 g, brown liquid). 1 H NMR (400 MHz, DMSO-d6): δ 6.95 (s, 1H), 6.81-6.77 (m, 2H), 5.95-5.93 (m, 2H), 3.90 (q, J = 6.5 Hz, 1H), 1 .86-1.85 (brs, 2H), 1.17 (d, J = 6.5 Hz, 3H). LCMS: (Method A) 149.0 (M -16), Rt. 1.66 min, 96.9% (Max). HPLC: (Method A) Rt. 1 .59 min, 96.86% (Max). Chiral HPLC: (Method B) Rt. 7.12 min, 97.76%
  • 3
  • [ 210488-54-3 ]
  • (R)-1-(1-(benzo[d][1,3]dioxol-5-yl)ethyl)piperazine [ No CAS ]
  • 4
  • [ 210488-54-3 ]
  • (R)-5-(4-(1-(benzo[d][1,3]dioxol-5-yl)ethyl)piperazin-1-yl)-1,3,4-thiadiazol-2-amine [ No CAS ]
  • 5
  • [ 210488-54-3 ]
  • [ 42137-88-2 ]
  • C20H24N2O4S [ No CAS ]
YieldReaction ConditionsOperation in experiment
63.8% With N-ethyl-N,N-diisopropylamine; at 105℃; for 18h; To a stirred solution of (R)-1-(benzo[d][1,3]dioxol-5-yl)ethan-1-amine (2 g, 12.1 mmol) in DIPEA (4.22 mL, 24.2 mmol), N,N-bis(2-chloroethyl)-p-toluene sulfonamide (3.9 g, 13.3 mmol) was added at rt and the resulting mixture was heated to 105 C for 18 h. Completion of the reaction was confirmed by TLC. Reaction mixture was diluted with water (30 mL) and extracted with EtOAc (2 x 50 mL). The combined organic layer was dried over Na2SO4 and evaporated under vacuum. To the resulting crude solid hexane (50 mL) was added, and the resulting mixture was stirred for 10 min at rt. It was filtered and the solid was washed with Et2O (2 x 50 mL) and dried under vacuum to give the title compound. Yield: 63.8% (3 g, off white solid). 1H NMR (400 MHz, DMSO-d6): delta 7.59 (d, J = 8.4 Hz, 2H), 7.45 (d, J = 8.0 Hz, 2H), 6.81-6.77 (m, 2H), 6.69-6.6 (m, 1H), 5.97-5.95 (m, 2H), 3.35-3.31 (m, 1H), 2.81-2.80 (m, 4H), 2.42 (s, 3H), 2.36-2.32 (m, 4H), 1.18 (d, J= 6.8 Hz, 3H). LCMS: (Method A) 389.0 (M+H), Rt. 3.39 min, 98.9% (Max). HPLC: (Method A) Rt. 3.30 min, 99.53% (Max), Chiral HPLC: (Method A) Rt. 15.54 min, 97.58%.
  • 6
  • (R)-N-(1-(benzo[d][1,3]dioxol-5-yl)ethylidene)-2-methylpropane-2-sulfinamide [ No CAS ]
  • [ 210488-54-3 ]
  • 7
  • [ 3162-29-6 ]
  • [ 210488-54-3 ]
  • 8
  • C13H17NO4S [ No CAS ]
  • [ 210488-54-3 ]
  • 9
  • (R)-N-(1-(benzo[d][1,3]dioxol-5-yl)ethyl)-2-methylpropane-2-sulfonamide [ No CAS ]
  • [ 210488-54-3 ]
YieldReaction ConditionsOperation in experiment
95.75% With aluminum (III) chloride; methoxybenzene; In dichloromethane; at 35℃; for 3.0h; (3) 1.59 g of compound d-3 was dissolved in 40 mL of dichloromethane,2.05 g of aluminum trichloride and 0.89 g of anisole were added.The mixture was stirred and stirred at 35 C for 3 h to remove the tert-butylsulfonyl group.Washed with water, extracted with dichloromethane,Evaporating the solvent to give 0.88 g of compound d-4, yield 95.75%;
  • 10
  • [ 210488-54-3 ]
  • 4-(2-oxopyrrolidin-1-yl)-3-(4-methylphenyl)-4,5-dihydro-1H-pyrazole-1-carboxylic acid chloride [ No CAS ]
  • (S)-4-(2-oxopyrrolidin-1-yl)-3-(4-methylphenyl)-N-((R)-1-(3,4-(methylenedioxy)phenyl)ethyl)-4,5-dihydro-1H-pyrazole-1-carboxamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
31% With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 20℃; General procedure: Synthesis steps: Compound A-2 (1.05g, 3.26mmol) and compound B-9 (0.62g, 3.26mmol) were added to dichloromethane (10mL), and then N,N-diisopropylethylamine (DIPEA, 1.26 g, 9.75mmol), stirred at room temperature overnight, added 0.5N hydrochloric acid (10mL) and stirred for 10min. Let stand for layering, separate the organic phase, extract the aqueous phase with dichloromethane (10 mL×3), combine the organic phases, and dry with anhydrous Na2SO4.Filter, concentrate the filtrate to dryness under reduced pressure, and separate the residue by silica gel column chromatography (PE:EA=3:11:3, v/v)The title compound 1 was obtained with a yield of 32% and its R, R-epimer 1a with a yield of 29%.
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