Base-Metal-Catalyzed Regiodivergent Alkene Hydrosilylations

A complementary set of base metal catalysts has been developed for regiodivergent alkene hydrosilylations: iron complexes of phosphine‐iminopyridine are selective for anti‐Markovnikov hydrosilylations (linear/branched up to >99:1), while the cobalt complexes bearing the same type of ligands provi...

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Veröffentlicht in:	Angewandte Chemie International Edition 2016-06, Vol.55 (23), p.6671-6675
Hauptverfasser:	Du, Xiaoyong, Zhang, Yanlu, Peng, Dongjie, Huang, Zheng
Format:	Artikel
Sprache:	eng
Schlagworte:	Alkenes Base metal Bearing Catalysts Chemical industry Cobalt Coordination compounds Efficiency Functional anatomy homogeneous catalysis hydrosilylation Iron Ligands Metals Phosphine Selectivity
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Zusammenfassung:	A complementary set of base metal catalysts has been developed for regiodivergent alkene hydrosilylations: iron complexes of phosphine‐iminopyridine are selective for anti‐Markovnikov hydrosilylations (linear/branched up to >99:1), while the cobalt complexes bearing the same type of ligands provide an unprecedented high level of Markovnikov selectivity (branched/linear up to >99:1). Both systems exhibit high efficiency and wide functional group tolerance. Regiodivergent alkene hydrosilylation has been accomplished with high efficiency using a newly developed set of complementary base metal catalyst systems. An inversion of regioselectivity (linear/branched) from >99:1 to
ISSN:	1433-7851 1521-3773
DOI:	10.1002/anie.201601197