METHOD FOR OBTAINING OF N-PHENYLCARBAMIC ACID ESTERS

摘要

The object of the invention is a method for obtaining of N-phenylcarbamic acid esters in a liquid phase on the way pressure carbonylation of nitrobenzene at the presence of alcohols. The product can be a raw material basis for production of polyurethanes. According to the invention as a catalytic system there are used metallic palladium and/or its chlorides, bromides or iodides, powdered iron and elementary iodine and possibly pyridine or tertiary aliphatic amine of the molecular weight from 59 to 300.