[C:1]([C:3](=[CH:12]OCC)[C:4]([NH:6][C:7]([O:9][CH2:10][CH3:11])=[O:8])=[O:5])#[N:2].[Cl:16][C:17]1[CH:23]=[CH:22][C:20]([NH2:21])=[CH:19][CH:18]=1>C(O)C>[C:1]([C:3](=[CH:12][NH:21][C:20]1[CH:22]=[CH:23][C:17]([Cl:16])=[CH:18][CH:19]=1)[C:4]([NH:6][C:7]([O:9][CH2:10][CH3:11])=[O:8])=[O:5])#[N:2]To a warm solution of α-cyano-β-ethoxy-N-ethoxycarbonylacrylamide (14.8 g) and ethanol is added p-chloroaniline (8.9 g) in ethanol. Precipitate appears instantaneously. The mixture is stirred at room temperature for one hour and filtered to yield α-cyano-β-(4-chloroanilino)-N-ethoxycarbonylacrylamide, m.p. 177°-183°.
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