PRODUCTION OF CHLOROFORMIC ACID ESTER

摘要

PURPOSE:To selectively produce a chloroformic acid ester in a high yield without using toxic phosgene by the catalytic reaction of a chlorine compound selected from hydrogen chloride and nitrosyl chloride with carbon monoxide and a nitrous acid ester in the presence of a solid catalyst supporting a platinum-group metal or its salt. CONSTITUTION:A chloroformic acid ester is produced by the catalytic reaction of a chlorine compound selected from hydrogen chloride and nitrosyl chloride with carbon monoxide and a nitrous acid ester in the presence of a solid catalyst supporting a platinum-group metal or its salt. The amount of the nitrous acid ester is 0.1-100mol based on 1mol of the chlorine compound.