Allylic C(sp3)–H arylation of olefins via ternary catalysis

نویسندگان

چکیده

Transforming C(sp3)–H bonds efficiently and selectively into C(sp3)–C(sp3) or C(sp3)–X is a highly relevant task. The direct arylation of allylic provides an elegant method for the formation unconjugated aryl-substituted olefins. Although both ionic- radical-based transition metal catalysis has been applied to achieve this transformation, numerous challenges remain. requirement persistent radical coupling partners, moderate selectivity need tri- tetrasubstituted olefins have limited generality existing methods. Now we report ternary catalytic that combines organic photoredox, hydrogen atom transfer nickel catalysis, can directly arylate readily available This process operates under mild conditions exhibits remarkable reaction scope in aryl halide olefin partners. Mechanistic experiments, coupled with density functional theory calculations Ni-oxidation states energetics allowed elucidation cycle origin regioselectivity. A combining reported. combination broad range aid

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ژورنال

عنوان ژورنال: Nature Synthesis

سال: 2022

ISSN: ['2731-0582']

DOI: https://doi.org/10.1038/s44160-021-00006-z