Piperidine → 5-acetyl-3-(3-methyl-1H-indol-2-ylmethylene)-1,3-dihydro-indol-2-one

반응식

[C:1]([C:4]1[CH:5]=[C:6]2[C:10](=[CH:11][CH:12]=1)[NH:9][C:8](=[O:13])[CH2:7]2)(=[O:3])[CH3:2].[CH3:14][C:15]1[C:23]2[C:18](=[CH:19][CH:20]=[CH:21][CH:22]=2)[NH:17][C:16]=1[CH:24]=O.N1CCCCC1>C(O)C>[C:1]([C:4]1[CH:5]=[C:6]2[C:10](=[CH:11][CH:12]=1)[NH:9][C:8](=[O:13])[C:7]2=[CH:24][C:16]1[NH:17][C:18]2[C:23]([C:15]=1[CH3:14])=[CH:22][CH:21]=[CH:20][CH:19]=2)(=[O:3])[CH3:2]

참가 물질

실험 절차

A mixture of 5-acetyl-2-oxindole (70 mg), 3-methylindole-2-carbaldehyde (56 mg) (prepared according to Synthetic Communications, 1986, 16, 1799) and piperidine (30 mg) in ethanol (1 mL) was held in a sealed tube at 90° C. overnight. The mixture was cooled to room temperature. The solid was collected by vacuum filtration, washed with cold ethanol and dried in a vacuum to give 83 mg (75% yield) of 5-acetyl-3-(3-methyl-1H-indol-2-ylmethylene)-1,3-dihydro-indol-2-one.