SUBSTITUTED ACRYLATE, ITS PREPARATION AND PREPARATION OF HETEROCYCLIC COMPOUND

摘要

PROBLEM TO BE SOLVED: To provide a method of preparing (a) a thermally stable substituted acrylate of general formula I necessary to synthesize a heterocyclic compound. SOLUTION: Dealcoholization from a substituted malondialdehyde acetal expressed by general formula II is carried out in the presence of a homogenous or heterogeneous catalyst. [in formulae I and II, R1 to R5 are the same or different alkyl, cycloalkyl,aralkyl or aryl group having 12C or lower].