TY - CHAP
T1 - Stability of Supported Pincer Complex-Based Catalysts in Heck Catalysis
AU - Sommer, William W.
AU - Jones, Christopher C.
AU - Weck, Marcus
PY - 2007
Y1 - 2007
N2 - Several studies question the stability of palladated pincer complexes under Heck catalysis conditions. Through a series of poisoning tests, kinetic and spectroscopic studies, and computational experiments, these studies prove that any supported as well as small molecule Pd-pincer complexes decompose during the Heck catalysis. Furthermore, no experimental proof could be obtained with regard to the proposed Pd(II)/Pd(IV) catalytic cycle, which is a requirement for the Heck promoted by stable Pd(II) pincer complexes. The decomposition results may be applicable to other Pd-coupling chemistry because they follow similar catalytic cycles. Despite the detailed kinetic and poisoning studies, recent literature still show a plethora of articles that use palladated pincer complexes as catalysts for coupling chemistry where no studies to investigate the stability of the Pd pincer complexes are carried out.
AB - Several studies question the stability of palladated pincer complexes under Heck catalysis conditions. Through a series of poisoning tests, kinetic and spectroscopic studies, and computational experiments, these studies prove that any supported as well as small molecule Pd-pincer complexes decompose during the Heck catalysis. Furthermore, no experimental proof could be obtained with regard to the proposed Pd(II)/Pd(IV) catalytic cycle, which is a requirement for the Heck promoted by stable Pd(II) pincer complexes. The decomposition results may be applicable to other Pd-coupling chemistry because they follow similar catalytic cycles. Despite the detailed kinetic and poisoning studies, recent literature still show a plethora of articles that use palladated pincer complexes as catalysts for coupling chemistry where no studies to investigate the stability of the Pd pincer complexes are carried out.
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U2 - 10.1016/B978-044453138-4/50018-0
DO - 10.1016/B978-044453138-4/50018-0
M3 - Chapter
AN - SCOPUS:84882824899
SN - 9780444531384
SP - 385
EP - 397
BT - The Chemistry of Pincer Compounds
PB - Elsevier
ER -