Heteroaromatic Tripoles. Syntheses of Aminopyrimidine-Bispyridinium Salts and Bispyridiniopyrimidinaminides
作者:Andreas Schmidt
DOI:10.3987/com-98-8140
日期:——
Depending on the substitution pattern of the 4-aminophenyltrichloropyrimidine derivatives (1, 2) reaction with 4-dimethyraminopyridine and 4(pyrrolidin-1 -yl)pyridine, respectively, formed either the pyrimidine-dipyridinium salts (3, 4, 7, 8) or the tripolar species (5, 6, 9, 10) which are the first examples of mesomeric betainium salts.