The Introduction of Substituted Vinyl Groups. III.(Dialkylvinyl)-alkylcyanoacetic Esters

AC Cope, EM Hancock

文献索引：Cope; Hancock Journal of the American Chemical Society, 1938 , vol. 60, p. 2904,2905

全文：HTML全文

被引用次数: 5

摘要

Indirect methods similar to those previously described for introducing isopropenyl and 1- methylpropenyl groups into malonic ester'are not equally practical for synthesizing higher (l- alkylvinyl)-alkylmalonic esters. Such syntheses would require as intermediates higher 1- alkylalkylidenemalonic esters, RCH& (R')= C (COOEt) 2. Es-ters of the latter type are difficult to prepare because ketones higher in molecular weight than methyl ethyl ketone do not ...