325801-03-4Relevant academic research and scientific papers
Formation of unexpected heterocyclic products from pyrolysis of thiocarbonyl stabilised phosphonium ylides
Aitken, R. Alan,Barker, Graeme,Cleghorn, Lee P.,Reid, Euan J.,Roberts, Sheryl S.
, p. 1135 - 1147 (2014/01/17)
Chiral phthalimido thioxo-stabilised phosphonium ylides, prepared starting from (S)-alanine and (S)-phenylalanine, undergo intramolecular Wittig reaction upon pyrolysis leading to the previously unknown pyrrolo[2,1-a]isoindol-5-one-2- thiones, rather than
Simple unprecedented conversion of phosphine oxides and sulfides to phosphine boranes using sodium borohydride
Rajendran, Kamalraj V.,Gilheany, Declan G.
supporting information; experimental part, p. 817 - 819 (2012/02/03)
A variety of phosphine oxides and sulfides can be efficiently converted directly to the corresponding phosphine boranes using oxalyl chloride followed by sodium borohydride. Optically active P-stereogenic phosphine oxides can be converted stereospecifically to phosphine boranes with inversion of configuration by treatment with Meerwein's salt followed by sodium borohydride.
METHOD FOR INCREASING THE ENANTIOMERIC EXCESS OF CHIRAL PHOSPHINE OXIDES, SULPHIDES, IMIDES AND BORANES
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Page/Page column 25-26, (2010/04/03)
The present invention relates to a method for increasing the enantiomeric excess of a chiral phosphine oxide, a chiral phosphine sulphide, a chiral phosphine-borane and a chiral phosphine imide said method comprising the steps of: (a) contacting said chiral phosphine oxide, sulphide, imide or borane with a solvent to form a slurry; (b) partitioning the phosphine oxide, sulphide, imide or borane either into the solvent or as an insoluble product; and (c) optionally, isolating the partitioned phosphine oxide, sulphide, imide or borane.
Chemo-, regio- and stereoselective conversion of P-chirogenic phosphorus borane complexes into their P=O or P=S derivatives
Uziel, Jacques,Darcel, Christophe,Moulin, Dominique,Bauduin, Christophe,Juge, Sylvain
, p. 1441 - 1449 (2007/10/03)
Chiral and achiral organophosphorus borane complexes are readily transformed into their corresponding phosphoryl or thiophosphoryl compounds in high yields using one-pot procedures with stereoselectivities reaching 100% in many cases. Both oxidation and sulfuration were performed under neutral or mild conditions and were applied to various organophosphorus borane complexes (phosphines, phosphinates, chlorophosphines, aminophosphines, etc.). In the case of the dissymmetric diphosphine or aminophosphine phosphinite ligands, the reaction of their diborane complexes proceeds regiospecifically to a single phosphorus group, affording the corresponding hybrid derivatives.
