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Prop-2-ynyltriphenylphosphonium bromide

The addition of nucleophiles to prop-2-ynyltriphenylphosphonium bromide (142) proceeds via the allenylphosphonium salt (143) to give the substituted vinylphos-phonium salts (144). The salts formed by addition of primary amines to (143) exist, in many cases, exclusively in either the enamine (145) or imine (146) tautomers,... [Pg.23]

Prop-2-ynyltriphenylphosphonium bromide was converted in two steps to an a-iminophosphorus ylide that on reaction with traces of water gave a p-aminovinylphosphine oxide (Scheme 26). ... [Pg.82]

See other pages where Prop-2-ynyltriphenylphosphonium bromide is mentioned: [Pg.36]    [Pg.36]   
See also in sourсe #XX -- [ Pg.716 ]



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