Intramolecular frustrated N/B lewis pairs by enamine hydroboration

被引:131
|
作者
Schwendemann, Sina [1 ]
Froehlich, Roland [1 ]
Kehr, Gerald [1 ]
Erker, Gerhard [1 ]
机构
[1] Univ Munster, Inst Organ Chem, D-48149 Munster, Germany
关键词
FREE CATALYTIC-HYDROGENATION; HETEROLYTIC DIHYDROGEN ACTIVATION; METAL-FREE; ADDITION-REACTIONS; BOND ACTIVATION; ACID; REACTIVITY; H-2; MECHANISM; IMINES;
D O I
10.1039/c1sc00124h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A series of enamines undergoes anti-Markovnikov hydroboration with Piers' borane HB(C6F5)(2) to yield C-2-bridged frustrated N/B Lewis pairs, featuring weak N center dot center dot center dot B interaction. Some examples show typical frustrated Lewis pair reactions with dihydrogen or with 1-alkynes. One such N/B FLP serves as an active catalyst for the hydrogenation of enamines. Many of the new compounds were characterized by X-ray diffraction.
引用
收藏
页码:1842 / 1849
页数:8
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