[CH3:1][N:2](C)[CH:3]=[C:4]([C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][C:8]=1[N+:13]([O-:15])=[O:14])[CH:5]=O.C[NH:18]N>C1(C)C=CC=CC=1>[CH3:1][N:2]1[CH:3]=[C:4]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][C:8]=2[N+:13]([O-:15])=[O:14])[CH:5]=[N:18]1A solution of 60 g of 3-(dimethylamino)-2-(2-nitrophenyl)acrolein (see Example 10) and 16.1 g of methylhydrazine in 200 ml of toluene was refluxed for 10 hours, then concentrated to dryness in vacuo. The residue was recrystallized from 1-chlorobutane/hexane (about 1:1) to yield 51 g of the title compound; m.p. 41°-44° C.
불러오는 중…