亚磺酸的不同加成模式被开发用于烯酮的化学发散磺酰化,其中烯酮的炔部分的离子磺酰化是通过盐控制的顺式加成途径实现的。烯烃部分的自由基磺酰化也提供了立体定义的磺酰化烯烃。还探索了Ti(O i -Pr) 4催化的 ( E )-β-氯乙烯基酮的 α-乙烯基醛醇缩合,然后进行化学发散磺酰化的一锅串联序列,从而可以轻松获得高度取代的二烯和埃尼斯。
Electrochemical Oxidative Cross‐Coupling Reaction to Access Unsymmetrical Thiosulfonates and Selenosulfonates
作者:Xiaofeng Zhang、Ting Cui、Yanghao Zhang、Weijin Gu、Ping Liu、Peipei Sun
DOI:10.1002/adsc.201900047
日期:2019.4.23
The electrochemical oxidativecross‐dehydrogenativecoupling of arylsulfinic acids with thiophenols was achieved via a radical process. A wide range of arylsulfinic acids and substituted thiophenols were found to be tolerated, providing unsymmetrical thiosulfonates in good to excellent yields. This electrochemical method can also be used for the reaction of arylsulfinic acids with disulfides or diselenides
[EN] HETEROCYCLIC COMPOUNDS USEFUL AS MODULATORS OF TNF ALPHA<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES UTILES EN TANT QUE MODULATEURS DU TNF ALPHA
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2017023905A1
公开(公告)日:2017-02-09
Disclosed are compounds of Formula (I) or a salt thereof, wherein: A is CR1 or N; B is CR3 or N; D is CR4 or N; L1 is -(CR7R7)m-; L2 is -(CR7R7)n-; and X, Z, R1, R2, R3, R4, R5,and R6 are define herein. Also disclosed are methods of using such compounds as modulators of TNFα, and pharmaceutical compositions comprising such compounds. These compounds are useful in treating inflammatory and autoimmune diseases.
Visible-light initiated oxidative cyclization of phenyl propiolates with sulfinic acids to coumarin derivatives under metal-free conditions
作者:Wenchao Yang、Shuai Yang、Pinhua Li、Lei Wang
DOI:10.1039/c5cc00878f
日期:——
A visible-light initiated oxidative cyclization of phenyl propiolates with sulfinic acids has been developed at room temperature under metal-free conditions.
已在室温下无金属条件下开发了苯基丙炔酸酯与亚砜酸的可见光引发氧化环化反应。
Sodium iodide-mediated synthesis of vinyl sulfides and vinyl sulfones with solvent-controlled chemical selectivity
作者:Congrong Liu、Jin Xu、Gongde Wu
DOI:10.1039/d1ra07086j
日期:——
Vinyl sulfides and vinyl sulfones are ubiquitous structures in organic chemistry because of their presence in natural and biologically active compounds and are very frequently encountered structural motifs in organic synthesis. Herein we report an efficient synthesis of vinyl sulfides and vinyl sulfones via transition metal-free sodium iodide-mediated sulfenylation of alcohols and sulfinic acids with
Synthesis of ketones by palladium-catalysed desulfitative reaction of arylsulfinic acids with nitriles
作者:Tao Miao、Guan-Wu Wang
DOI:10.1039/c1cc13352g
日期:——
Palladium-catalysed desulfitative addition of arylsulfinic acids to aryl and alkyl nitriles with 2,2'-bipyridine as a ligand afforded a variety of aryl ketones via hydrolysis of ketimine intermediates.