56587-04-3Relevant academic research and scientific papers
Process for preparing cyclopropane-carboxylic acid esters
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, (2008/06/13)
A process for preparing an organic acid ester of the formula (I), EQU1 wherein R1 is a hydrogen atom or a methyl group, R2 is a methyl group, a vinyl group, a 2,2-dichlorovinyl group, a 1-propenyl group, a 2-methyl-1-propenyl group, a 2-carbomethoxy-1-propenyl group, a 2-methoxymethyl-1-propenyl group, a 1,3-butadienyl group, a 2-methyl-1,3-butadienyl group or a cyclopentylidenemethyl group when R1 is a hydrogen atom, and R2 is a methyl group when R1 is a methyl group; which comprises reacting an acid of the formula (II), EQU2 wherein R1 and R2 are each as defined above, or its reactive derivative, or mixture of the acid and its reactive derivative with a quaternary ammonium salt of the formula (III), SPC1 wherein X is a halogen atom, A is an alkylamine, pyridine or an N-alkylaniline.
