반응식
[C:1]([N:5]1[CH:9]=[C:8]([C:10]([OH:12])=O)[CH:7]=[N:6]1)([CH3:4])([CH3:3])[CH3:2].Cl.[CH3:14][NH:15][O:16][CH3:17].Cl.CN(C)CCCN=C=NCC.OS1C2C=CC=CC=2N=C1.C(N(CC)CC)C>ClCCl>[CH3:17][O:16][N:15]([CH3:14])[C:10]([C:8]1[CH:7]=[N:6][N:5]([C:1]([CH3:4])([CH3:3])[CH3:2])[CH:9]=1)=[O:12]참가 물질
반응물 5
생성물 1
시약·촉매·용매 1
실험 절차
To a suspension of 5.00 g (29.7 mmol) 1-tert-butyl-1H-pyrazole-4-carboxylic acid and 5.80 g (59.5 mmol) N,O-dimethylhydroxylamine hydrochloride in 60 ml dichloromethane are added 12.5 g (65.4 mmol) N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride, 4.42 g (32.7 mmol) 1-hydroxybenzothiazol and 16.5 ml (119 mmol) triethylamine. The reaction mixture is stirred for 18 hours at room temperature. It is quenched with saturated sodium hydrogen carbonate solution and the mixture is partitioned between water and dichloromethane. The organic phase is dried over sodium sulfate and evaporated. The residue is chromatographed on a silica gel column with cyclohexane/ethyl acetate as eluent to afford 1-tert-butyl-1H-pyrazole-4-carboxylic acid methoxy-methyl-amide as colorless crystals; HPLC/MS 1.91 min (B), [M+H] 212.
후처리
- customIt is quenched with saturated sodium hydrogen carbonate solution
- customthe mixture is partitioned between water and dichloromethane
- dry with materialThe organic phase is dried over sodium sulfate
- customevaporated
- customThe residue is chromatographed on a silica gel column with cyclohexane/ethyl acetate as eluent
출처 및 근거
- ORD 기록
- ord-ea6b68daf65d4710bf6eec751004ee32
- 출처 데이터셋
- uspto-grants-2015_09
- 특허 번호
- US09120805B2
연결된 노트
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