19874-73-8Relevant academic research and scientific papers
Reactions of tautomeric quaternary phosphonium salts based on triphenylphosphine and 3-phenylpropargyl bromide with nitrogen nucleophiles
Khachatrian, R. A.,Zalinian, S. A.,Bagdasarian, G. B.,Sarkisova, E. A.,Injikian, M. G.
, p. 148 - 150 (2007/10/03)
Triphenyl(3-phenylprop-1-ynyl)phosphonium bromide (3) was isolated. This compound is a third isomer for the tautomeric system triphenyl(3-phenylpropadienyl)phosphonium bromide (1) ->/- triphenyl(3-phenylprop-2-ynyl)phosphonium bromide (2). Salts 1 and 2 smoothly react with secondary amines to give adducts with an α,β-double bond, while salt 3 changes to an allene ylide. Addition of phenylhydrazine and triphenyl(phenylethynyl)phos-phonium bromide to salts 1 and 2 and addition of dimethylformamide to salt 2 were performed.
