62460-47-3Relevant articles and documents
Synthesis and transformations of triphenylpropargylphosphonium bromide
Bagdasaryan,Pogosyan,Panosyan,Indzhikyan
, p. 1177 - 1183 (2008/12/22)
A method of the synthesis of triphenylpropargylphosphonium bromide is developed. Its isomerization and hydration in various solvents are studied, and reactions with secondary amines, triethylamine, and triphenylphosphine are carried out. It is established that secondary amines add to the intermediate allene isomer with subsequent migration of the formed double bond to the phosphorus atom. The reaction of triethylamine with triphenylpropargyl and triphenylethynyl bromides occurs similarly to alkaline hydrolysis involving attack of the amine on the phosphorus atom. Triphenylphosphine forms with triphenylpropargylphosphonium bromide a bis-salt with a terminal methylene group. Experimental evidence is obtained showing that for phosphoxazole derivatives to form from oximes derived from triphenyl(oxomethyl)phosphonium salts that latter should bear an aryl substituent at the keto group.
Synthesis and X-Ray Crystal Structure of (1S,3R,4S,1'S)-4-Methyl-3-triphenylphosphonium-1--2-hydrido-2-borazetidinium Bromide - the First Example of a Four-membered Heterocycle
Booth, Brian L.,Lawrence, Nicholas J.,Pritchard, Robin G.,Rashid, Humayan S.
, p. 287 - 290 (2007/10/02)
The title compound and related derivatives are synthesised from enamino(triphenyl)phosphonium salts and borane, and converted into β-aminophosphonium salts and β-aminophosphine oxides containing two chiral centres.
