METHOD FOR MAKING ORGANO(FLUOROMETHYL) MERCURY COMPOUNDS

摘要

Organo(fluorohalomethyl) mercury compounds are prepared by fluorinating with an organomercuric fluoride, a compound of the formula: RHgCX3 wherein R is an organo radical, X is chlorine or bromine and the X's can be the same or different. Reaction is carried out at a temperature of at least 0 DEG C. but at a temperature below which substantial dihalocarbene forms. The organo(fluorohalomethyl)-mercury product is useful as a fluorohalocarbene donor and is used in the preparation of gem-difluorocyclopropanes and gem-fluorohalocyclopropanes.