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Dimethylformamide → 6-Methyl-2-nitrobenzoic acid

HRID 215996
ノート
印刷プレビュー

反応式

HRID 215996 の反応式
[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]
参加物実験手順出典と根拠反応ノート

参加物

7

反応物 4

HCID 6228DimethylformamideHCID 8471TriethylamineHCID 1345483-Aminopiperidine-2,6-dione hydrochlorideHCID 15088701Methyl 2-(bromomethyl)-4-nitrobenzoate

生成物 3

HCID 160976-Methyl-2-nitrobenzoic acidHCID 67184N-bromobutanimide
HCID 15088701
Methyl 2-(bromomethyl)-4-nitrobenzoate

実験手順

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.

出典と根拠

ORDレコード
ord-50bb23bc71144454934ee8a6c47a8d49
出典データセット
uspto-grants-2012_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08193219B2

反応ノート

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