We describe the direct synthesis of organophosphorus compounds from ubiquitous aryl and vinyl carboxylic acids via decarbonylative palladium catalysis. The catalytic system shows excellent scope and tolerates a wide range of functional groups (>50 examples). The utility of this powerful methodology is highlighted in the late-stage derivatization directly exploiting the presence of the prevalent carboxylic
NiCl2-catalyzed P–C coupling reaction of arylhalides and various > P(O)H-compounds under MW conditions without directly added P-ligands. The reactivity of a few aryl derivatives in the Pd(OAc)2-catalyzed Hirao reaction was also studied. An induction period was observed in the reaction of bromobenzene and diphenylphosphine oxide. Finally, the less known copper(I)-promoted P–C coupling reactions were investigated
Photocatalyst-free visible-light-promoted C(sp<sup>2</sup>)–P coupling: efficient synthesis of aryl phosphonates
作者:Shiqi Xiang、Min Li、Zhen Xia、Chen Fang、Wen Yang、Wei Deng、Ze Tan
DOI:10.1039/d3ob01987j
日期:——
A novel and efficientmethod for the synthesis of aryl phosphonates fromarylhalides and trialkylphosphites via EDA complex-based photochemistry has been developed. It is demonstrated that aryl radicals, generated from the photoexcitation of the EDA complex formed by arylhalide and potassium thioacetate, could be intercepted with trialkylphosphite to produce the corresponding aryl phosphonates in