The Preparation of 4-Methoxy-2-butenal, a New Dienophile, and Notes on Related Compounds

I Ichikizaki, CC Yao, Y Fujita, Y Hasebe

Index: Ichikizaki et al. Bulletin of the Chemical Society of Japan, 1955 , vol. 28, p. 80,82

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Citation Number: 5

Abstract

It is thought that the 2-butenals containing a functional substituent in the 4-position may be valuable as new type dienophiles for the practical use of the Diels-Alder reaction. No work on the synthesis of such r-substituted crotonaldehydes had been found in the literature of the subject, till the formation of 4-dimethylamino-2-butenal was first reported by the authors, 0 who were unable to isolate the free aldehyde, but succeeded in isolating the 2, 4- ...