A correlation study of bisphosphine ligand bite angles with enantioselectivity in Pd-catalyzed asymmetric transformations
作者:Malati Raghunath、Xumu Zhang
DOI:10.1016/j.tetlet.2005.09.093
日期:2005.11
Among the bisphosphine ligands, we have previously developed C-n-TunePhos (n = 1-6) as a family of ligands with tunable bite angles. The increase in spacer-CH2- groups in this family of ligands causes changes in ligand dihedral angle, which in turn causes P-Pd-P bite angle variation. Pd-catalyzed asymmetric alkylations and cycloadditions have been tested with C-n-TunePhos ligands. This study aims at a possible correlation between ligand bite angles with enantioselectivity of the Pd-catalyzed asymmetric products. (c) 2005 Published by Elsevier Ltd.
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