FIELD: chemistry.
SUBSTANCE: reaction of dichlorocarbenation of (2Z)-1,4-dialkoxybutane-2 is performed at temperature 30°C for 5 hours in presence of catamine phase transfer catalyst AB. As a rule, reaction with (2Z)-1,4-dialkoxybutane-2 is performed with the following component ratio, wt %: (2Z)-1,4-dialkoxybutane-2 2.55; chloroform 57; catamine AB 0.025; sodium hydroxide 40.425.
EFFECT: method makes it possible to obtain target products with high output with reduction of reaction time.
2 cl, 1 tbl, 2 ex
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