Bis(phosphoryl)-Bridged Biphenyls by Radical Phosphanylation: Synthesis and Photophysical and Electrochemical Properties
作者:Achim Bruch、Aiko Fukazawa、Eriko Yamaguchi、Shigehiro Yamaguchi、Armido Studer
DOI:10.1002/anie.201104114
日期:2011.12.9
fourfold radical phosphanylation of 2,2,2′,2′‐tetrabromobiphenyl with a bis(stannyl)phosphane followed by oxidation produces a highly strained biphenyl with two phosphoryl bridges (see picture). Extended π‐conjugated compounds consisting of this core unit can be also synthesized by using the same approach. The two phosphoryl bridges significantly alter the electronic structure, making this biphenyl a unique
2,2,2',2'-四溴代二苯与双(锡烷基)膦的有效四倍自由基膦酰基化反应,然后进行氧化,产生具有两个磷酰基桥的高应变联苯(见图)。也可以使用相同的方法合成由该核心单元组成的扩展π共轭化合物。两个磷酰基桥显着改变了电子结构,使该联苯成为独特的电子接受支架。