Diisopropylethylamine → 1,1-dimethylethyl (2S)-4-{[2-bromo-5-(trifluoromethyl)phenyl]sulfonyl}-2-methyl-1-piperazinecarboxylate

HRID 43381

반응식

HRID 43381 반응식
[CH3:1][C@H:2]1[CH2:7][NH:6][CH2:5][CH2:4][N:3]1[C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9].CCN(C(C)C)C(C)C.[Br:24][C:25]1[CH:30]=[CH:29][C:28]([C:31]([F:34])([F:33])[F:32])=[CH:27][C:26]=1[S:35](Cl)(=[O:37])=[O:36]>ClCCl>[Br:24][C:25]1[CH:30]=[CH:29][C:28]([C:31]([F:33])([F:32])[F:34])=[CH:27][C:26]=1[S:35]([N:6]1[CH2:5][CH2:4][N:3]([C:8]([O:10][C:11]([CH3:13])([CH3:12])[CH3:14])=[O:9])[C@@H:2]([CH3:1])[CH2:7]1)(=[O:37])=[O:36]

참가 물질

5

반응물 3

HCID 81531DiisopropylethylamineHCID 27786132-Bromo-5-(trifluoromethyl)benzene-1-sulfonyl chlorideHCID 10081508tert-Butyl (2S)-2-methylpiperazine-1-carboxylate

생성물 1

HCID 666494711,1-dimethylethyl (2S)-4-{[2-bromo-5-(trifluoromethyl)phenyl]sulfonyl}-2-methyl-1-piperazinecarboxylate수율 103%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a solution of 1,1-dimethylethyl (2S)-2-methyl-1-piperazinecarboxylate (1.18 g, 4.98 mmol) in dichloromethane (40 ml) was added DIPEA (2.70 ml, 15.45 mmol) and then 2-bromo-5-(trifluoromethyl)benzenesulfonyl chloride (1.613 g, 4.98 mmol). The reaction mixture was stirred for 1 h 20 min at room temperature. The reaction mixture was then washed with water (50 ml), dried on a phase separation cartridge and concentrated under vacuum to give the crude title compound (2.5 g) which was used directly in the next step.

후처리

  1. washThe reaction mixture was then washed with water (50 ml)
  2. customdried on a phase separation cartridge
  3. concentrationconcentrated under vacuum

출처 및 근거

ORD 기록
ord-d891079110e84355b0befba06f1e0b96
출처 데이터셋
uspto-grants-2013_09
특허 번호
US08536183B2

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