Novel synthesis of thiophen-3-malonic esters and their selenophen analogues
作者:J. Peter Clayton、Angela W. Guest、Andrew W. Taylor、Robert Ramage
DOI:10.1039/c39790000500
日期:——
Condensation of 1,4-dichlorobut-3-en-2-one with malonic esters gives the corresponding Knoevenagel adducts which may be cyclised directly to thiophen-3-malonicesters or their selenophenanalogues.