title: Use of deuterium labeling studies to determine the stereochemical outcome of palladium migrations during an asymmetric intermolecular Heck reaction.
abstract: A series of deuterium labeling experiments showed that Pd migrations during an intermolecular asymmetric Heck reaction between phenyl triflate and various deuterated 2,3-dihydrofurans (2b, 2c, 2d, 2e) occurs exclusively by either syn-1,2-dyotropic shifts or a syn-chain-walking mechanism; no evidence was observed to support anti-1,2-dyotropic shifts or anti-beta-H Pd eliminations during the formation of 6 and 7.
authors: Department of Chemistry, University of Calgary, Calgary, Alberta, Canada.
authors: Bronwen M M
authors: BM
authors: Wheatley
authors: Brian A
authors: BA
authors: Keay