Premium
Unprecedented B–H Activation Through Pd‐Catalysed B–C vinyl Bond Coupling on Borane Systems
Author(s) -
Farràs Pau,
OlidBritos David,
Viñas Clara,
Teixidor Francesc
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201100177
Subject(s) - chemistry , borane , hydride , coupling (piping) , cascade , substrate (aquarium) , stereochemistry , polymer chemistry , crystallography , organic chemistry , catalysis , hydrogen , oceanography , chromatography , engineering , geology , mechanical engineering
A Pd‐induced cascade B–C vinyl coupling that produces multiple B–C vinyl bonds starting from a single B–I bond has been demonstrated. The process is most probably stimulated by the geometrical disposition of the B–H bonds confronting the B–Pd sites, along with the hydride character of the B–H units. Two and one B–C vinyl couplings on the metallacarborane substrate have been generally obtained, but formation up to six B–C vinyl bonds has been observed. A theoretical reaction mechanism involving an unprecedented B–H activation is proposed to interpret the multisubstitution process.