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Chemoselective Preparation of 1-Iodoalkynes, 1,2-Diiodoalkenes, and 1,1,2-Triiodoalkenes Based on the Oxidative Iodination of Terminal Alkynes
Published on: September 12, 2018
Metal-Free Oxidative Functionalization of Allylic Sulfones/Allylic Triflones with Water Participation Enabled by
Qian Tong1, Li-Ting Xiao1, Ming-Yang Gu1
1Technical Institute of Fluorochemistry, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
Abstract:
A metal-free, efficient, iodine(III)-promoted oxidative transformation of allylic sulfones/allylic triflones with water participation for accessing sulfonyl ketones and triflyl allylic alcohols is reported. This strategy enables the selective construction of two SO2-containing compounds with chemical and biological significance, and its success mainly relies on the substitution effect of the starting materials. Water serves as an eco-friendly oxygen atom source. This transformation has excellent selectivity, broad substrate scope, mild reaction conditions, and ease of scale-up.
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