A novel multiheteroatom (N, O and P) [3,3]-sigmatropic rearrangement is disclosed, based on two important types of organophosphates, 2-(N-heteroaryl) methyl phosphates and α-keto phosphates, being accessed smoothly and efficiently.
TBAI/TBHP mediated oxidative cross coupling of aryl alkyl ketones with H-phosphonates and H-phosphine oxides in water: facile access to ketol phosphates and phosphinates
A metal free cross coupling of aryl alkyl ketones with alkyl/aryl H-phosphonates and H-phosphine oxides usingtetrabutylammoniumiodide (TBAI) catalyst in the presence of tert-butyl hydroperoxide (TBHP) as terminal oxidant in aqueous media is developed. This new approach offers a direct and convenient route to access a wide range of ketol phosphates and phosphinates in moderate to good yields.
An Effective Catalytic α-Phosphoryloxylation of Ketones with Iodobenzene
作者:Jie Yan、Ye Pu、Liumian Gao、Huijun Liu
DOI:10.1055/s-0031-1289630
日期:2012.1
An effective catalytic method for α-phosphoryloxylation of ketones is reported. When ketones were reacted with phosphates in the presence of iodobenzene as the recyclable catalyst and m-chloroperbenzoic acid as the terminal oxidant in acetonitrile at room temperature, the α-phosphoryloxylation of ketones took place easily and the corresponding keto phosphates were obtained in moderate to good yields.