Rearrangement of 3,3-Disubstituted 1-Aryl-4,5-dihydro-5-oxo-3H-1,2,4-triazolium Tetrafluoroborates; Part 1. A Versatile Synthesis of 1,5-Disubstituted 2-Aryl-1,2-dihydro-3H-1,2,4-triazol-3-one Tetrafluoroborates
Addition de phénylhydrazones aux olépines en milieu neutre
作者:G. Le Fevre、J. Hamelin
DOI:10.1016/0040-4020(80)80039-1
日期:1980.1
Phenylhydrazones may exhibit three types of reactivitytowards alkenes: Nucleophilicattack by carbon, nucleophilicattack by nitrogen and 1,3-dipolar cycloaddition through the azomethine imine ylide. The course of the reaction depends on the nature of the hydrazone and alkene subitituents.