Condensation of α-ethoxyacrolein with secondary amines

Conclusions Morpholine, piperidine, and dibutylamine undergo both 1,2 and 1,4 addition to -ethoxyacrolein to form a mixture of 3,3- and 1,3-diamino-2-ethoxy-1-propenes. The N-formyl derivative of the starting amine is a side product. The reaction of -ethoxyacrolein with diethylamine gives only splitting of the C-C bond and formation of N-formyldiethylamine.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2610–2612, November, 1985.