Process for the production of n,o-disubstituted urethanes

Details Process for the production of n,o-disubstituted urethanes Process for the production of n,o-disubstituted urethanes

C - Chemistry, Metallurgy

07

C

260/468

C07C 263/04 (2006.01)

Patent

CA 1166649

Mo-2276 LeA 20,586 A PROCESS FOR THE PRODUCTION OF N,O-DISUBSTITUTED URETHANES ABSTRACT OF THE DISCLOSURE N,O-disubstituted urethanes are produced by reacting a primary amine with a dialkyl carbonate in the presence of a catalyst. Suitable catalysts include neutral and basic compounds of lead, titanium and zirconium. The urethanation reaction is desirably carried out at a temperature in the range of 80 to 250°C. The N,O-disubstituted urethanes produced by this process are particularly useful as starting materials in processes for the production of isocyanates. LeA 20,586

385293

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