O-Phenylenediamine → HCID 135696401、化合物

反応式

[N+:1]([C:4]1[C:5]([OH:14])=[C:6]([O:12][CH3:13])[CH:7]=[C:8]([CH:11]=1)[CH:9]=O)([O-:3])=[O:2].[C:15]1([NH2:22])[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=1[NH2:21]>CO.[N+](C1C=CC=CC=1)([O-])=O>[N:21]1[C:16]2[CH:17]=[CH:18][CH:19]=[CH:20][C:15]=2[NH:22][C:9]=1[C:8]1[CH:11]=[C:4]([N+:1]([O-:3])=[O:2])[C:5]([OH:14])=[C:6]([O:12][CH3:13])[CH:7]=1

参加物

実験手順

aa) A solution of 4.93 g of 5-nitrovanillin and 2.7 g of 1,2-phenylenediamine in 45 ml of methanol and 15 ml of nitrobenzene is heated to boiling under reflux. After 15 minutes crystals begin to separate from the red solution. After 18 hours the reaction mixture is cooled to room temperature and diluted with 60 ml of methanol. The crystals are filtered under suction and washed with methanol. There is obtained 4-(2-benzimidazolyl)-2-methoxy-6-nitrophenol of m.p. 198°-200° (from N,N-dimethylformamide/methanol).