An efficient method for the preparation of dialkoxymethanes from dichloromethane with alcohols catalyzed by a Cu-NHC complex

摘要

A facile, rapid and efficient method for the preparation of dialkoxymethanes from dichloromethane with alcohols catalyzed by a Cu-NHC complex is reported. A variety of symmetrical dialkoxymethanes can be prepared under mild condition in excellent yields (up to 98%). The unsymmetrical ether is also obtained in 89% yield from the etherification of p-tolylmethanol and n-butyl chloride catalyzed by ICyCuCI complex at 80 degrees C. The reaction provides a new method for the preparation of dialkoxymethanes under mild conditions in excellent yields. (C) 2016 Published by Elsevier Ltd.