Desulfonylative Electrocarboxylation with Carbon Dioxide
作者:Jun-Song Zhong、Zi-Xin Yang、Cheng-Lin Ding、Ya-Feng Huang、Yi Zhao、Hong Yan、Ke-Yin Ye
DOI:10.1021/acs.joc.1c01261
日期:2021.11.19
most investigated electrochemical approaches for converting thermodynamically inert carbon dioxide (CO2) into value-added carboxylic acids. By converting organic halides into their sulfone derivatives, we have developed a highly efficient electrochemical desulfonylative carboxylation protocol. Such a strategy takes advantage of CO2 as the abundant C1 building block for the facile preparation of multifunctionalized
有机卤化物的电羧化是将热力学惰性二氧化碳 (CO 2 ) 转化为增值羧酸的最受研究的电化学方法之一。通过将有机卤化物转化为其砜衍生物,我们开发了一种高效的电化学脱磺酰羧化方案。这种策略利用 CO 2作为丰富的 C1 结构单元,在温和的反应条件下轻松制备多功能羧酸,包括非甾体抗炎药布洛芬。
Phenylsulfonyl as a directing group for nitrile oxide cycloadditions and mCPBA epoxidations
作者:Jeffrey D. Butler、Michael B. Donald、Zhensheng Ding、James C. Fettinger、Mark J. Kurth
DOI:10.1016/j.tetlet.2009.06.100
日期:2009.9
All unexpected selectivity trend in the nitrile oxide cycloaddition and epoxidation reactions of 4,4-disubstituted cyclopentenes is reported. A variety of facially distinct, 'X-' and 'Y-substituted' cyclopentenes were investigated. (C) 2009 Elsevier Ltd. All rights reserved.
The Sulfone Linker in Solid-Phase Synthesis: Preparation of 3,5-Disubstituted Cyclopent-2-enones
作者:Wei-Chieh Cheng、Mark J. Kurth
DOI:10.1021/jo0256843
日期:2002.6.1
The preparation of functionalized 3,5-disubstituted cyclopent-2-enones via a solid-phase sulfone linker strategy is described. Polystyrene/divinylbenzene sulfinate 1 underwent S-alkylation followed by alpha,alpha-dialkylation with cis-1,4-dichloro-2-butene to form polymer-bound 3-phenylsulfonylcyclopentenes 8. Subsequent epoxidation of the cyclopentene moiety in 8 was accomplished by treatment of mCPBA