PhI(OAc) 2 -mediated decomposition of N -arylsulfonyl hydrazones: metal-free synthesis of ( E )-vinyl sulfones
作者:Zaigang Luo、Yuyu Fang、Yu Zhao、Xuemei Xu、Chengtao Feng、Zhong Li、Xiaomei Zhang、Jie He
DOI:10.1016/j.tetlet.2016.07.099
日期:2016.9
preparing of (E)-vinylsulfones via PhI(OAc)2-mediated decomposition of ketone-derived N-arylsulfonyl hydrazones has been developed. The generation of α- or β-substituted vinylsulfones was affected by the steric hindrance at β-position of the substrates. This transformation provides an environment-friendly and important complementary strategy for the synthesis of various (E)-vinylsulfones.
Tandem Ir-Catalyzed Allylic Substitution Reaction of Allyl Sulfinates and Isomerization
作者:Qing-Long Xu、Li-Xin Dai、Shu-Li You
DOI:10.1021/ol902873q
日期:2010.2.19
An efficient method for the synthesis of trisubstituted vinyl sulfones is reported. Using the [Ir(COD)Cl](2)/phosphoramidite ligand (L-1)/DBU, trisubstituted vinyl sulfones could be synthesized from allyl sulfinates in high yields as exclusively E isomers.