128981-49-7Relevant academic research and scientific papers
2-BENZOPYRYLIUM SALTS. 39. RECYCLIZATION OF 2-BENZOPYRYLIUM SALTS UPON REACTION WITH VINYL ETHYL ETHER AND COMPOUNDS WITH AN ACTIVE METHYLENE GROUP
Berin, S. V.,Tosunyan, D. E.,Kuznetsov, E. V.,Zhdanov, Yu. A.
, p. 266 - 271 (1990)
The reaction of 2-benzopyrylium salts with vinyl ethyl ether, ethyl acetoacetate, malonodinitrile, and nitromethane gives variously substituted naphthalene derivatives.It is proposed that the reaction with vinyl ether proceeds through cycloaddition,
