94394-61-3Relevant academic research and scientific papers
Copper-catalyzed arylation of nucleophiles by using butadienylphosphines as ligands: Mechanistic insight
Kaddouri, Hamid,Vicente, Virginie,Ouali, Armelle,Ouazzani, Fouad,Taillefer, Marc
supporting information; experimental part, p. 333 - 336 (2009/04/14)
(Figure Presented) Worth diene for: The butadienylphosphine L (see scheme), obtained on a large scale from a new synthetic method, is an efficient ligand in Ullmann-type copper-catalyzed arylation reactions. The use of this phosphorus ligand made it possible to follow the reaction by 31P NMR spectroscopy and thus to propose a mechanism for the Ullmann reaction.
Preparation of β-Substituted trans-Ethylene Diphenylphosphines and Sulphides by P(O) and P(S)-activated Olefination
Gloyna, Dieter
, p. 360 - 366 (2007/10/02)
Methylene bis-diphenylphosphine monoxide (3c) in toluene reacts regiospecifically and stereoselectively with aldehydes in the presence of potassium tert-butoxide to β-substituted trans-ethylene diphenylphosphines 6, which can be oxidized to the sulphides 2 by sulphur in acetone.These sulphides 2 are to be obtained also directly from methylene bis-diphenylphosphine oxide sulphide 3b and methylene bis-diphenylphosphine disulphide 3d, respectively, under the same olefination conditions.But the yields are smaller and the purification of the raw products is much more difficult, if 3d is used.
