Methyl Isocyanate → 1-(N-methylamino)carbonyl-4-(4-nitrophenoxy)-4-phenylpiperidine
反応式
[N+:1]([C:4]1[CH:22]=[CH:21][C:7]([O:8][C:9]2([C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=3)[CH2:14][CH2:13][NH:12][CH2:11][CH2:10]2)=[CH:6][CH:5]=1)([O-:3])=[O:2].[CH3:23][N:24]=[C:25]=[O:26]>C1C=CC=CC=1>[CH3:23][NH:24][C:25]([N:12]1[CH2:11][CH2:10][C:9]([O:8][C:7]2[CH:6]=[CH:5][C:4]([N+:1]([O-:3])=[O:2])=[CH:22][CH:21]=2)([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[CH2:14][CH2:13]1)=[O:26]参加物
4
実験手順
To a stirred solution of 4.9 g of 4-(4-nitrophenoxy)-4-phenylpiperidine in 50 ml of benzene was added, dropwise, a solution of 0.91 g of methyl isocyanate in 15 ml of benzene. The reaction mixture was stirred at room temperature for two hours. Evaporation of the volatiles afforded a solid which was purified by means of high pressure liquid chromatography (silica gel; elution with 50% ethyl acetate/dichloromethane) to yield 6.05 g of 1-(N-methylamino)carbonyl-4-(4-nitrophenoxy)-4-phenylpiperidine, m.p. 110°-115° C.