Copper-Catalyzed Difunctionalization of Allenes with Sulfonyl Iodides Leading to (<i>E</i>)-α-Iodomethyl Vinylsulfones
作者:Ning Lu、Zhiguo Zhang、Nana Ma、Conghui Wu、Guisheng Zhang、Qingfeng Liu、Tongxin Liu
DOI:10.1021/acs.orglett.8b01765
日期:2018.7.20
A highly regioselective iodosulfonylation of allenes in the presence of CuI and 1,10-phenanthroline has been developed for the synthesis of various useful (E)-α-iodomethyl vinylsulfones in moderate to excellent yields. This practical reaction is fast, operationally simple, and in particular, proceeds under very mild conditions to afford the target products with high regio- and stereoselectivity. The
A simple and efficient method for synthesis of sulfonyl chlorides/bromides by oxyhalogenation of thiols and disulfides with oxone-KX (X = Cl or Br) using water as the solvent is presented.
Electrochemical cross-coupling reactions of sodium arenesulfinates with thiophenols and phenols
作者:Zijian Zhong、Pan Xu、Jinfeng Ma、Aihua Zhou
DOI:10.1016/j.tet.2021.132444
日期:2021.10
and sulfonate esters using sodium arenesulfinates and thiophenols/phenols is disclosed. The protocol involves using inorganic and non-toxic NaI as both redox catalyst and supporting electrolyte at room temperature without oxidant and base. The reactions provide good yields of products and tolerate broad substrate scope. The mechanistic studies revealed that the reactions proceed via a radical pathway
公开了使用芳烃亚磺酸钠和苯硫酚/苯酚生成硫代磺酸盐和磺酸酯的绿色电化学氧化交叉偶联方案。该协议涉及在室温下使用无机和无毒 NaI 作为氧化还原催化剂和支持电解质,无需氧化剂和碱。该反应提供了良好的产物收率并耐受广泛的底物范围。机理研究表明,反应通过形成 SO 2 -S 和 SO 2 -O 键的自由基途径进行。
Regiochemical control of the Diels–Alder reactions with β-phenylsulphonylacrylate esters
作者:Antony D. Buss、Gavin C. Hirst、Philip J. Parsons
DOI:10.1039/c39870001836
日期:——
Alkyl β-phenylsulphonylacrylates have been made as geometrically pure iosmers; the Z-isomer reacts with dienes in Diels-Alder cycloadditions to afford the opposite regiochemistry to that observed with the E-isomer and this provides a useful method for reversing normal carbonyl directing effects.
[EN] MODULATORS OF INDOLEAMINE 2,3-DIOXYGENASE<br/>[FR] MODULATEURS D'INDOLAMINE 2,3-DIOXYGÉNASE
申请人:GLAXOSMITHKLINE INTELLECTUAL PROPERTY (NO 2) LTD
公开号:WO2017051354A1
公开(公告)日:2017-03-30
Provided are compounds and pharmaceutically acceptable salts thereof, their pharmaceutical compositions, their methods of preparation, and methods for their use in the prevention and/or treatment of HIV; including the prevention of the progression of AIDS and general immunosuppression.