NOVEL SYNTHESES OF ARYLCARBAMIC ESTERS FROM CARBON DIOXIDE AND AROMATIC AMINE VIA A ZINC CARBAMATE.

Article abstract of DOI:10.1246/bcsj.61.2913

Arylcarbamic esters were synthesized directly from carbon dioxide and an aromatic amine via a zinc carbamate. The alkylation of the reaction mixture of carbon dioxide, an aromatic amine, and diethylzinc with dialkyl sulfate formed alkyl arylcarbamate in a high yield. Also, 2-hydroxycyclohexyl diphenylcarbamate was obtained selectively in a good yield by the reaction of carbon dioxide, epoxycyclohexane, and ethylzinc diphenylamide. Other arylcarbamates of 1,2-cyclohexanediol were obtained by the reactions of carbon dioxide, an aromatic amine, diethylzinc, and epoxycyclohexane.