Simple unprecedented conversion of phosphine oxides and sulfides to phosphine boranes using sodium borohydrideElectronic supplementary information (ESI) available: Full experimental procedure, and full characterization data for phosphine oxides, sulfides and boranes; 31P NMR data for all CPS; NMR spectra and HPLC traces of phosphine boranes. See DOI: 10.1039/c1cc14856g
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 co...
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