Phosphabenzenes as electron withdrawing phosphine ligands in catalysis

EF DiMauro, MC Kozlowski

Index: DiMauro, Erin F.; Kozlowski, Marisa C. Journal of the Chemical Society. Perkin Transactions 1, 2002 , # 3 p. 439 - 444

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Citation Number: 28

Abstract

The utility of phosphabenzenes as ligands in late transition metal catalysis is examined. Molecular orbital calculations indicate that phosphabenzenes possess a low lying LUMO permitting π-back bonding interactions. The resultant electron withdrawing nature of the phosphabenzenes is beneficial for reactions in which reductive elimination steps are rate- limiting. For example, phosphabenzenes were found to function well in nickel catalyzed [4 ...

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