ORGANIC DEUTERIUM COMPOUNDS: XI. SYNTHESIS OF 1-CHLORO-1-ALKYNES AND 1-CHLORO-1-PROPYNE-<i>d</i>₃

Abstract

Dehydrohalogenation of cis-1,2-dichloro-1-alkenes, RCCl═CHCl, with potassium hydroxide in butanol has been used to prepare a number of new 1-chloro-1-alkynes, viz. 1-chloro-1-propyne-d 3 , 1-chloro-1-propyne, 1-chloro-1-butyne, and 1-chloro-1-pentyne in good yields. The last three compounds were also prepared by chlorination of 1-propyne, 1-butyne, and 1-pentyne with sodium hypochlorite.