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N,N´-Bis(2-alkoxyphenyl)ureas as By-Products in the Reaction of Tertiary Alcohols with 2-Alkoxyphenyl Isocyanates

F. Gregáň, V. Kettmann, P. Novomeský, and J. Ďurinda

Department of Inorganic and Organic Chemistry, Faculty of Pharmacy, Comenius University, CS-832 32 Bratislava

 

Abstract: Primary and secondary alcohols are known to react with aryl isocyanates to give arylcarbamates, while tertiary alcohols produce diarylureas. In this work we used two tertiary alcohols, 2-methyl-1-dimethylamino-2-propanol and 1-dimethylaminomethylcyclohexanol, to demonstrate that when reacting with 2-alkoxyphenyl isocyanates a mixture of products was obtained, the 2-alkoxyphenylcarbamates being the main products of the reaction.

Full paper in Portable Document Format: 474a240.pdf

 

Chemical Papers 47 (4) 240–242 (1993)

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