Synthesis of unprotected and borane-protected cyclic phosphines using Ru- and Mo- based olefin metathesis catalysts.
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.
Slinn
Catherine A
CA
University of Oxford, The Dyson Perrins Laboratory, South Parks Road, Oxford, UK OX1 3QY.
Redgrave
Alison J
AJ
Hind
S Lucy
SL
Edlin
Chris
C
Nolan
Steven P
SP
Gouverneur
Veronique
V