NOVEL MANUFACTURE OF METHYL 2,2-DIMETHYL-3-(2'-METHYLPROPENYL)CYCLOPROPANE-1, 1-DICARBOXYLATE

摘要

Novel penten-2-yl derivatives of the formula in the trans form IMAGE I wherein R is selected from the group consisting of hydrogen and acetyl and to a novel process for the preparation of methyl 2,2-dimethyl-3-(2'-methyl-propenyl)-cyclopropane-1,1-dicarboxylate which is an intermediate for chrysanthemic acid.