Bis-boranes in the frustrated Lewis pair activation of carbon dioxide
作者:Xiaoxi Zhao、Douglas W. Stephan
DOI:10.1039/c0cc04791k
日期:——
Using a frustratedLewispair approach, the 1,1-bis-(C(6)F(5))(2)BOB(C(6)F(5))(2) is shown to bind CO(2) in a monodentate fashion, while the bis-boranes (X(2)B)(2)C=CMe(2) (X = Cl, C(6)F(5)) give bidentate chelation of CO(2) affording unique heterocycles.
<i>ansa</i>-Bis(1-boratabenzene) Zirconium(IV) Complexes with Short Carbon Bridges to Boron
作者:Arthur J. Ashe、Jeff W. Kampf、Matthew W. Schiesher
DOI:10.1021/om020769f
日期:2003.1.1
(8) with 1,2-bis(dichloroboryl)benzene 9 affords exchange product 10, which on deprotonation followed by reaction with ZrCl4 gives the very labile o-phenylene-bridged bis(1-boratabenzene)zirconium dicholoride 6. A similar reaction sequence from 8 and 1,1-bis(dichloroboryl)-2-methyl-1-propene 11 affords the 1,1-isobutenyl-bridged bis(1-boratabenzene)zirconium dichloride 7. The X-ray structure of 7 is