Access to Air-Stable 1,3-Diphosphacyclobutane-2,4-diyls by an Arylation Reaction with Arynes
作者:Yasuhiro Ueta、Koichi Mikami、Shigekazu Ito
DOI:10.1002/anie.201601907
日期:2016.6.20
appropriate conditions afforded the corresponding 1‐aryl 1,3‐diphosphacyclobutane‐2,4‐diyls. The air‐stable open‐shell singlet P‐heterocycles exhibit considerable electron‐donating character, and the aromatic substituent influences the open‐shell character, which is thought to be related to the property of p‐type semiconductivity. The P‐arylated 1,3‐diphosphacyclobutane‐2,4‐diyl systems can be further
鉴于材料的应用,调节1,3-二磷环丁烷-2-4,2-二基单元的理化性质是有吸引力的。事实证明,使用芳烃对于将相对富电子的芳基取代基安装到开壳单重态P杂环体系中是有效的。用邻位离子处理位阻于1,3-二磷酸环丁烯-4-酯的阴离子在适当的条件下,在氟化物的存在下,使甲硅烷基化的芳基三氟甲磺酸酯产生相应的1-芳基1,3-3-二磷环丁烷-2,4-二基。空气稳定的开壳单线态P杂环具有显着的给电子性,芳香取代基会影响开壳性,这被认为与p型半导电性有关。P芳基化的1,3-二磷酸环丁烷-2,4-二基系统可进一步用作氟化氢(HF)的检测器,这会导致其光吸收特性发生显着变化。