3-HYDROXYMETHYL-2,2-DIMETHYLCYCLOPROPANCARBALDEHYD-DIMETHYLACETAL

摘要

3-Hydroxymethyl-2,2-dimethylcyclopropanecarbaldehyde dimethyl acetal, especially in the same stereoisomeric form as that of the cyclopropane ring in (+)-3-carene, is a novel intermediate useful in the manufacture of pyrethroid insecticides. It may be manufactured by a process characterised in that 3-acetoxymethyl-2,2-dimethylcyclopropane carbaldehyde dimethyl acetal is subjected to hydrolysis.