Convenient methods for the preparation of p-dialkylaminophenylacetylenes.

…, S Nakatsuji, K Yoshida, K Nakashima…

Index: Akiyama, Shuzo; Nakatsuji, Shin'ichi; Yoshida, Keiko; Nakashima, Kenichiro; Hagiwara, Toshimitsu; et al. Bulletin of the Chemical Society of Japan, 1983 , vol. 56, # 1 p. 361 - 362

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Citation Number: 27

Abstract

Two convenient methods for the preparation of p-dialkylaminophenylacetylenes are reported: a) Dehydrobromination of the brominated compounds obtained easily from the dialkylamino substituted cinnamic acids in acetic acid instead of chloroform; b) dehydrochlorination of the 2-chlorostyrene derivative obtained from the reaction of p- dimethylaminobenzaldehyde with chloromethylenetriphenylphosphorane.