Azulene-substituted pyranylium salts. Syntheses and products characterization
作者:Alexandru C. Razus、Liviu Birzan、Claudia Pavel、Oana Lehadus、Andreea Cristina Corbu、Cristian Enache
DOI:10.1002/jhet.5570430423
日期:2006.7
The synthesis of 4-azulene-substituted 2,6-diphenyl- and 2,6-dimethyl-pyranylium salts and 2-azulenesubstituted 4,6-dimethyl-pyranylium salts by nucleophilic substitution at pyranylium moiety with various azulenes was studied. The starting materials for 2,6-diphenyl derivatives were 4 chlorinated pyranyliumsalts. They were obtained by the halogenation with PCl5 of corresponding pyranones and were