The Vinylogous Mannich Reaction: An Efficient Access to Substituted Nicotinonitriles
作者:Nikolaus Risch、Andreas Winter
DOI:10.1055/s-2003-42044
日期:——
A straightforward method for the preparation of substituted nicotinonitriles has been developed. Starting from conjugated β-enaminonitriles and iminium salts, this methodology establishes a convenient access to 6-aryl- (5), 6-amino- (16) and 6-carboxylic ester-substituted derivatives 14 and as well to acetic acid-substituted pyrroles 12.