24579-39-3Relevant academic research and scientific papers
One-pot palladium-catalyzed cross-coupling reaction of aryl iodides with stannylarsanes and stannylstibanes
Bonaterra, Mariana,Martin, Sandra E.,Rossi, Roberto A.
, p. 2731 - 2734 (2007/10/03)
(Formula presented) The reaction of Ph3As and Ph3Sb with Na metal in liquid ammonia gives Ph2M- ions (M = As, Sb) that react with n-Bu3SnCl to afford n-Bu3Sn-MPh 2 (1). The ammonia was allowed to evaporate, and toluene was added. The Pd-catalyzed cross-coupling reactions of these stannanes with aryl iodides afford functionalized triaryl-arsanes and triaryl-stibanes in high yields in a one-pot procedure (80-99%). The use of the commercially available, air-stable, and inexpensive Ph3M as the initial reagent and the one-pot process make this method a useful approach. This is the first report on the synthesis of 1 and the exploration of its chemistry.
Formation and Reactions of Diorganophosphinite Ions in Liquid Ammonia. Synthesis of Triorganophosphine Oxides by the SRN1 Mechanism
Bornancini, Estaban R. N.,Rossi, Roberto A.
, p. 2332 - 2336 (2007/10/02)
The reaction of triphenyl- and tribenzylphosphine oxides with alkali metals in liquid ammonia gave diphenyl- and dibenzylphosphinite ions, respectively, in high yields and a small amount of deoxygenated products.These ions reacted under photostimulation with aryl halides by the SRN1 mechanism to give aryldiphenyl- and aryldibenzylphosphine oxides in good yields.With tribenzylphosphine oxide, by consecutive debenzylation with alkali metals followed by photostimulated reaction with aryl halides, all the benzylic moieties could be replaced by aromatic moieties to finally obtain unsymmetrical triarylphosphine oxides.
