Heterolytic Cleavage of Dihydrogen by "Frustrated Lewis Pairs" Comprising Bis(2,4,6-tris(trifluoromethyl)phenyl)borane and Amines: Stepwise versus Concerted Mechanism

被引:85
作者
Lu, Zhenpin [1 ]
Cheng, Zhonghua [1 ]
Chen, Zhenxia [1 ]
Weng, Linhong [1 ]
Li, Zhen Hua [1 ]
Wang, Huadong [1 ]
机构
[1] Fudan Univ, Dept Chem, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China
关键词
amines; boranes; frustrated Lewis pairs; hydrogen; FREE CATALYTIC-HYDROGENATION; MOLECULAR-STRUCTURE; H-2; ACTIVATION; BORANE; REACTIVITY; IMINES; B(C6F5)(3); CARBENE; CRYSTAL; COMPLEX;
D O I
10.1002/anie.201104999
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Channeling the frustration: Frustrated Lewis pairs (FLPs) consisting of Ar F 2BH 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 2BH/NEt 3, H 2 is activated in a stepwise manner; for the "less frustrated" Ar F 2BH/DABCO, H 2 is activated in a concerted fashion (see scheme). © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:12227 / 12231
页数:5
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