Rhodium(iii)-catalyzed ortho-olefination of aryl phosphonates
作者:Bathoju Chandra Chary、Sunggak Kim
DOI:10.1039/c3ob41548a
日期:——
Rhodium(III)-catalyzed C–H olefination of aryl phosphonic esters is reported for the first time. In this mild and efficient process, the phosphonic ester group is utilized successfully as a new directing group. In addition, mono-olefination for aryl phosphonates is observed using a phosphonic diamide directing group.
Herein, a rhodium(III)-catalyzedoxidative C–H activation of simple arylphosphonates and phosphonamides with subsequent coupling with alkenes (olefination), internal alkynes (hydroarylation and oxidative cyclization), or simple arenes to give access to diverse P-containing functional frameworks is reported.