Dimethylformamide → 6-Methyl-2-nitrobenzoic acid

HRID 557236

반응식

HRID 557236 반응식
[CH2:1]1[CH:8](N)[C:6](=[O:7])[NH:5][C:3](=[O:4])C1.Cl.[Br:11][CH2:12][C:13]1[CH:22]=[C:21]([N+:23]([O-:25])=[O:24])[CH:20]=[CH:19][C:14]=1[C:15]([O:17][CH3:18])=[O:16].C(N(CC)CC)C.CN(C)C=[O:36]>>[Br:11][CH2:12][C:13]1[CH:22]=[C:21]([N+:23]([O-:25])=[O:24])[CH:20]=[CH:19][C:14]=1[C:15]([O:17][CH3:18])=[O:16].[N+:23]([C:21]1[CH:20]=[CH:19][CH:14]=[C:13]([CH3:12])[C:22]=1[C:6]([OH:7])=[O:36])([O-:25])=[O:24].[Br:11][N:5]1[C:6](=[O:7])[CH2:8][CH2:1][C:3]1=[O:4]

참가 물질

7

실험 절차

This compound can be prepared according to the methods described in U.S. Pat. Nos. 6,281,230 and 5,635,517, the entireties of which are incorporated herein by reference. For example, the compound can be prepared through catalytic hydrogenation of 3-(4-nitro-1-oxo-1,3 dihydro-isoindol-2-yl)-piperidine-2,6-dione. 3-(4-Nitro-1-oxo-1,3 dihydro-isoindol-2-yl)-piperidine-2,6-dione can be obtained by allowing 2,6-dioxopiperidin-3-ammonium chloride to react with methyl 2-bromomethyl-4-nitrobenzoate in dimethylformamide in the presence of triethylamine. The methyl 2-bromomethyl-4-nitrobenzoate in turn is obtained from the corresponding methyl ester of nitro-ortho-toluic acid by conventional bromination with N-bromosuccinimide under the influence of light.

출처 및 근거

ORD 기록
ord-6ecd52ecd9d7470280d681702cb61d45
출처 데이터셋
uspto-grants-2011_11
특허 번호
US08058443B2

연결된 노트

불러오는 중…