Direct Synthesis of Dibenzophospholes from Biaryls by Double C–P Bond Formation via Phosphenium Dication Equivalents
作者:Kazutoshi Nishimura、Koji Hirano、Masahiro Miura
DOI:10.1021/acs.orglett.0c00944
日期:2020.4.17
the generation of phosphenium dication equivalents from readily available phosphinic acids and Tf2O. The in situ-generated dication equivalents can be readily coupled with simple (hetero)biaryls to form the corresponding dibenzophospholes directly. This protocol can also be applied to the concise synthesis of six- and seven-membered phosphacycles as well as the largely π-extended heteroacene derivatives
我们已经开发了一种新的策略,用于从易于获得的次膦酸和Tf 2 O生成正当当量。原位生成的正当当量可轻松与简单的(杂)联芳基偶合,直接形成相应的二苯并膦。该方案也可用于六元和七元磷环的简捷合成以及大部分π延伸的杂并苯衍生物,这些在有机功能材料领域非常重要。