The directcatalyticsynthesis of carbamates from CO2, amines and methanol was achieved by controlling both the reaction equilibrium and the reactivity of the three components. The combination of CeO2 and 2‐cyanopyridine was an effective catalyst, providing various carbamates including N‐arylcarbamates in high selectivities.
Selenium-Catalyzed Oxidative Carbonylation of Aniline and Alcohols to <i>N</i>-Phenylcarbamates
作者:Xiaopeng Zhang、Huanzhi Jing、Guisheng Zhang
DOI:10.1080/00397910903134626
日期:2010.5.11
A facile one-pot, phosgene-free synthesis of N-phenylcarbamates is demonstrated. Catalyzed by selenium, oxidative carbonylation of aniline with alcohols in the presence of carbonmonoxide and oxygen affords the corresponding N-phenylcarbamates, mostly in fair to good yields. Selenium can be easily recovered because of its phase-transfer catalysis function.