Base-Mediated Tandem Reaction of α-Aryloxyacetophenones with Phosphonates: Selective Synthesis of Enol Phosphates
作者:Ye-Xiang Xie、Jin-Heng Li、Ren-Jie Song、Yan-Yun Liu、Ji-Cheng Wu、Guo-Bo Deng、Xu-Heng Yang、Yu Liu
DOI:10.1055/s-0031-1289717
日期:2012.4
A new, simple method for the synthesis of enol phosphates by base-mediated tandem reaction of α-aryloxyacetophenones with phosphonates is described. In the presence of Cs2CO3, a variety of α-aryloxyacetophenones smoothly underwent the sequential O-P bond-forming/C-O bond cleavage/isomerization tandem reaction with phosphonates at room temperature, providing the corresponding enol phosphates in moderate to excellent yields.
Regioselective addition of phosphites to acyl cyclopropanes and following rearrangements: a facile access to enol phosphates
作者:Haotian Li、Yuequan Zhu、Dengfu Lu、Yuefa Gong
DOI:10.1039/c8ob01533c
日期:——
with organophosphites and acyl cyclopropane derivatives is developed and proved to provide an efficient access to functionalized enol phosphates. Unlike the well-known Perkow reaction, which employs trialkyl phosphite as the nucleophile, dialkyl phosphite is the key to the success of our transformation. This method is compatible with a series of dialkyl phosphites and acyl cyclopropanes possessing