An Expeditious Entry to Benzylic and Allylic Sulfones through Byproduct-Catalyzed Reaction of Alcohols with Sulfinyl Chlorides
摘要:
In the absence of external catalysts and additives, a broad range of benzylic and allylic alcohols react with various sulfinyl chlorides to afford structurally diversified benzylic and allylic sulfones in moderate to excellent yields, and importantly, a catalysis with byproduct HCl is involved in this new protocol for sulfone synthesis.
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.