Syntheses, structures, and reactivities of borylcopper and -zinc compounds:: 1,4-silaboration of an α,β-unsaturated ketone to form a γ-siloxyallylborane

被引:154
作者
Kajiwara, Takashi [1 ]
Terabayashi, Tomomi [1 ]
Yamashita, Makoto [1 ]
Nozaki, Kyoko [1 ]
机构
[1] Univ Tokyo, Dept Chem & Biotechnol, Grad Sch Engn, Bunkyo Ku, Tokyo 1138656, Japan
关键词
allylic compounds; anions; boron; copper; zinc;
D O I
10.1002/anie.200801728
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Chemical Equation Presented) New borylcopper and borylzinc compounds were synthesized by transmetalation of boryllithium with metal halides. The 1,4-addition of lithium borylbromocuprate [BCu(μ2-Br)Li(thf) 3] to 2-cyclohexen-1-one as a boryl anion, followed by trapping of the resulting boron-substituted copper enolate with Me3SiCl, afforded the γ-siloxyallylborane. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:6606 / 6610
页数:5
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