Solid-state structure, solution-state behaviour and catalytic activity of electronically divergent C, N-chelating palladium-N-heterocyclic carbene complexes
Chapman, MR, Lake, BRM, Pask, CM et al. (2 more authors)
(2015)
Solid-state structure, solution-state behaviour and catalytic activity of electronically divergent C, N-chelating palladium-N-heterocyclic carbene complexes.
Dalton Transactions.
ISSN 1477-9226
Abstract
A family of electronically diverse pyridyl- and picolyl-substituted imidazolium salts have been prepared and coordinated to palladium in a single step, to deliver a variety of palladium(II)–N-heterocyclic carbene (NHC) complexes. Neutral Pd(NHC)X2, cationic [Pd(NHC)2X]X and dicationic [Pd(NHC)2]X2-type complexes have been isolated and fully characterised, with single-crystal X-ray analysis revealing a variety of coordination environments around the palladium centres. The pre-formed complexes have been employed in a model Suzuki–Miyaura cross-coupling reaction to yield a sterically congested tetra-ortho-substituted biaryl product, showcasing turnover numbers comparable to Pd-PEPPSI-IPr catalyst.
Metadata
Authors/Creators:
Chapman, MR
Lake, BRM
Pask, CM
Nguyen, BN
Willans, CE
Copyright, Publisher and Additional Information:
(c) The Royal Society of Chemistry 2015. This is an author produced version of a paper published in Dalton Transactions. Uploaded in accordance with the publisher's self-archiving policy
CORE (COnnecting REpositories)
CORE (COnnecting REpositories)