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Heterolytic Cleavage of Dihydrogen by “Frustrated Lewis Pairs” Comprising Bis(2,4,6‐tris(trifluoromethyl)phenyl)borane and Amines: Stepwise versus Concerted Mechanism
Author(s) -
Lu Zhenpin,
Cheng Zhonghua,
Chen Zhenxia,
Weng Linhong,
Li Zhen Hua,
Wang Huadong
Publication year - 2011
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.201104999
Subject(s) - heterolysis , frustrated lewis pair , frustration , borane , dabco , chemistry , tris , trifluoromethyl , medicinal chemistry , stereochemistry , lewis acids and bases , organic chemistry , catalysis , psychology , alkyl , biochemistry , neuroscience
Channeling the frustration : Frustrated Lewis pairs (FLPs) consisting of Ar F 2 BH 1 with NEt 3 or DABCO can activate H 2 under mild conditions. Theoretical calculations suggest two distinct reaction pathways for these two FLPs. For the “more frustrated” Ar F 2 BH/NEt 3 , H 2 is activated in a stepwise manner; for the “less frustrated” Ar F 2 BH/DABCO, H 2 is activated in a concerted fashion (see scheme).