NUEVO PROCEDIMIENTO DE OBTENCION DE 4-ARIL-1,4-DIHIDRO-2,6-DIMETIL-3,5-DI-ALCOXICARBONIL-PIRIDINAS ASIMETRICAS.

摘要

4-Aryl 1,4-dihydro 2,6-dimethyl 3,5-dialkoxycarbonyl pyridine derivs. are made by reacting the aromatic aldehyde contg. the 4-aryl gp. in hydrocarbon solvent in presence of catalytic amounts of piperidine and glacial acetic acid, with ethyl 3-amino crotonate and ethyl aceto-acetate, to obtain the desired asymmetric prod..