title: Catalytic asymmetric deprotonation of phosphine boranes and sulfides as a route to P-stereogenic compounds.
abstract: A comparison between phosphine boranes and sulfides in their catalytic asymmetric deprotonation using organolithiums and sub-stoichiometric amounts of (-)-sparteine has revealed superior catalytic efficiency in the phosphine sulfide deprotonation.
authors.affiliation: Department of Chemistry, University of York, Heslington, York, UK.
authors.forename: Jonathan J
authors.initials: JJ
authors.lastname: Gammon
authors.forename: Steven J
authors.initials: SJ
authors.lastname: Canipa
authors.forename: Peter
authors.initials: P
authors.lastname: O'Brien
authors.forename: Brian
authors.initials: B
authors.lastname: Kelly
authors.forename: Sven
authors.initials: S
authors.lastname: Taylor
mesh_terms: D001880:Boranes / Q000138:chemical synthesis*; D002384:Catalysis; D007202:Indicators and Reagents; D008094:Lithium / Q000737:chemistry; D008968:Molecular Conformation; D010720:Phosphines / Q000138:chemical synthesis*; D011522:Protons; D012997:Solvents; D013034:Sparteine / Q000737:chemistry; D013237:Stereoisomerism; D013440:Sulfides / Q000138:chemical synthesis*
chemical_list: D001880:Boranes; D007202:Indicators and Reagents; D010720:Phosphines; D011522:Protons; D012997:Solvents; D013440:Sulfides; D013034:Sparteine; D008094:Lithium