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A Versatile Ligand Platform that Supports Lewis Acid Promoted Migratory Insertion

Authors

  • Dr. Amaruka Hazari,

    1. Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, CA 91125 (USA)
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  • Dr. Jay A. Labinger,

    Corresponding author
    1. Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, CA 91125 (USA)
    • Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, CA 91125 (USA)
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  • Prof. John E. Bercaw

    Corresponding author
    1. Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, CA 91125 (USA)
    • Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, CA 91125 (USA)
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  • This work was supported by BP through the XC2 program. We thank Larry Henling and Michael Day for assistance with crystallography.

Abstract

original image

A helping hand: Incorporation of Group 2 Lewis acids into a macrocycle appended to a phosphine ligand attached to a rhenium carbonyl complex promotes otherwise unfavorable transformations of coordinated CO (see scheme; M=Ca, Sr). These Lewis acids form relatively weak M[BOND]O bonds, thereby enabling release of organic products from the metal center.

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