C(sp3)-CF3 Reductive Elimination from a Five-Coordinate Neutral Copper(III) Complex.
J Am Chem Soc
; 142(21): 9785-9791, 2020 05 27.
Article
em En
| MEDLINE
| ID: mdl-32365294
ABSTRACT
The reductive elimination from a high-valent late-transition-metal complex for the formation of a carbon-carbon or carbon-heteroatom bond represents a fundamental product-forming step in a number of catalytic processes. While reductive eliminations from well-defined Pt(IV), Pd(IV), Ni(III)/Ni(IV), and Au(III) complexes have been studied, the analogous reactions from neutral Cu(III) complexes remain largely unexplored. Herein, we report the isolation of a stable, five-coordinate, neutral square pyramidal Cu(III) complex that gives CH3-CF3 in quantitative yield via reductive elimination. Mechanistic studies suggest that the reaction occurs through a synchronous bond-breaking/bond-forming process via a three-membered ring transition state.
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MEDLINE
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En
Ano de publicação:
2020
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Article