Studies with Polyfunctionally Substituted Heteroaromatics: The Reaction of Heterocyclic Enaminonitriles with α-β-Unsaturated Nitriles
作者:A. M. Hussein、I. S. Abdel Hafez、M. H. Elnagdi
DOI:10.1002/jccs.200000045
日期:2000.4
5-Amino-4-cyano-3-phenylpyrazole (1) reacts with cinnamonitriles (2) to yield the pyrazolo[1,5-a]pyrimidines (3). Also, 5-amino-4-cyano-1-phenylpyrazole (4) reacts with cinnamonitriles (2) to yield the pyrazolo[3,4-b]pyridine derivatives (5). In contrast to this reaction, enaminothiophene (6) reacts with cinnamonitriles (2) to yield compound (7) not (8). The enaminopyrane (9) reacts with cinnamonitriles