Ethyl cyanoacetate → HCID 57229550, compound
Reaction equation
[CH2:1]([N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[C:10]([CH:17]=O)=[C:9]1Cl)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:20]([CH2:22][C:23]([O:25][CH2:26][CH3:27])=[O:24])#[N:21].[NH:28]1[CH2:33][CH2:32][CH2:31][CH2:30][CH2:29]1>CCO>[CH2:1]([N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[C:10]2[CH:17]=[C:22]([C:23]([O:25][CH2:26][CH3:27])=[O:24])[C:20]([N:28]3[CH2:33][CH2:32][CH2:31][CH2:30][CH2:29]3)=[N:21][C:9]1=2)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
To a slurry of 1.35 g of 1-benzyl-2-chloroindole-3-carbaldehyde in 30 ml abs. EtOH was added 1 ml of ethyl cyanoacetate and 3.5 ml of piperidine, and the mixture was stirred at room temperature for 2.5 days. 30 ml of ice/water was added, and the precipitate was isolated by filtration and dried to give (1b). Yield 1.6 g of (1b), m.p. 155°-156° C.