Abstract
Methyl malonyl chloride and ethyl malonyl chloride are the acid chlorides of malonic acid diester. The present study focuses on the study of the synthesis of monomethyl malonyl chloride and monoethyl malonyl chloride. The synthesis was a three step process of selective saponification of dialkyl malonate followed by hydrolysis and then chlorination of monoalkyl malonic acid. The reaction was studied in the presence of solvent and absence of solvent (which is methylene chloride). Kinetics of the process was studied. Reaction was found to be first order by integrated rate law. The green process was evaluated with maximum conversion. The conversion of methyl malonic acid in solvent process was found to be 78.67% and in without solvent process was found to be 93.08% from the experiments carried out. The conversion of ethyl malonic acid in solvent process was found to be 84.39% and in without solvent process was found to be 98.23% from the experiments carried out.
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