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Nickel‐Catalyzed Asymmetric Reductive Heck Cyclization of Aryl Halides to Afford Indolines
Author(s) -
Qin Xurong,
Lee Marcus Wen Yao,
Zhou Jianrong Steve
Publication year - 2017
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201707134
Subject(s) - chemistry , catalysis , aryl , nickel , reductive elimination , palladium , medicinal chemistry , hydride , heck reaction , protonation , halide , organic chemistry , metal , alkyl , ion
A nickel‐catalyzed asymmetric reductive Heck reaction of aryl chlorides has been developed that affords substituted indolines with high enantioselectivity. Manganese powder is used as the terminal reductant with water as a proton source. Mechanistically, it is distinct from the palladium‐catalyzed process in that the nickel–carbon bond is converted into a C−H bond to release the product through protonation instead of hydride donation followed by C−H reductive elimination on Pd.