A Novel Preparation of Enamine Phosphonates from Ketene O, N-, S, N-and N, N-Acetals with Diethyl Phosphite

M Fukuda, K Kan, Y Okamoto, H Sakurai

Index: Fukuda,M. et al. Bulletin of the Chemical Society of Japan, 1975 , vol. 48, p. 2103 - 2105

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Citation Number: 12

Abstract

1-Dimethylamino-1-methoxy-1-alkenes (ketene O, N-acetals), 1-dimethylamino-1-ethylthio-1- alkenes (ketene S, N-acetals) and 1, 1-bis (dimethylamino) ethylene (ketene N, N-acetal) reacted with diethyl phosphite to give the corresponding (E)-diethyl 1-dimethylamino-1- alkenylphosphonates. Although ketene diethylacetal (ketene O, O-acetal) reacted with diethyl phosphite to give diethyl 1, 1-diethoxy-1-ethylphosphonate, 1, 1-bis (ethylthio)-1- ...