Letter
Computational Characterization of a Complete Palladium-Catalyzed Cross-Coupling Process: The Associative Transmetalation in the Stille Reaction
Abstract

The species presumably involved in the associative ligand substitution mechanism for the Stille cross coupling of vinyl bromide and trimethylvinyl stannane with Pd(PMe3)2/PMe3 as catalysts in DMF (as ligand and solvent) have been structurally and energetically characterized. The cyclic four-coordinate transition state for the rate-determining transmetalation step explains the retention of configuration in the Stille coupling of chiral nonracemic alkyl stannanes.
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History
- Published In Issue January 05, 2006
- Received October 4, 2005
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CHSnMe3 as the nucleophile. Both experimentally proposed mechanisms (cyclic and ...
CH2)(PH3)2Br as the starting ...

