title: Synthesis of unprotected and borane-protected cyclic phosphines using Ru- and Mo- based olefin metathesis catalysts.
abstract: Ru- and Mo-based catalysts can be used in ring closing metathesis (RCM) reactions to synthesise cyclic phosphines protected as their borane complexes. The compatibility of the Schrock Mo-catalyst and the N-heterocyclic carbene Ru-catalysts with this class of substrates is particularly noteworthy as asymmetric RCM (ARCM) is now emerging as a new tool for the preparation of homochiral phosphines. One of the key results is that the Mo-catalyst allows the ring closure of the unprotected diallylphenylphosphine with 95% conversion.
authors.affiliation: University of Oxford, The Dyson Perrins Laboratory, South Parks Road, Oxford, UK OX1 3QY.
authors.forename: Catherine A
authors.initials: CA
authors.lastname: Slinn
authors.forename: Alison J
authors.initials: AJ
authors.lastname: Redgrave
authors.forename: S Lucy
authors.initials: SL
authors.lastname: Hind
authors.forename: Chris
authors.initials: C
authors.lastname: Edlin
authors.forename: Steven P
authors.initials: SP
authors.lastname: Nolan
authors.forename: Veronique
authors.initials: V
authors.lastname: Gouverneur