A Convenient and Improved Procedure for the Cyanation of Enamines and 1,3-Dicarbonyl Compounds
摘要:
The direct cyanation of enamines 2a-f using acylsubstituted cyanatobenzenes 1a-c and cyanatoanthraquinone 1d furnishes beta-cyanoenamines 3a-f which upon hydrolysis afford the cyanoketones 4a,b. 2-Cyano-1,3-diketones 6a-c are obtained starting from compounds 5a-c and 1.
A New Modified Electrophilic Cyanation of Aromatics with Activated Aryl Cyanates
作者:K. Buttke、T. Reiher、H. J. Niclas
DOI:10.1080/00397919208019077
日期:1992.8
The selective cyanation of electron-rich aromatics succeeds in moderate to good yields with the activated aryl cyanates 1a-d using AlC13/HCl. The formation of p-isomeres is preferred.