Process for the manufacture of monohalomaleate and monohalofumarate compounds from dihalosuccinate compounds using a phase-transfer catalyst

摘要

There is provided a method of manufacture of dialkyl monohalomaleate and dialkyl monohalofumarate and mixtures thereof via a dehydrohalogenation of the appropriate dialkyl dihalosuccinate precursor in the presence of an aqueous base and a phase transfer catalyst.