Nickel-catalyzed α-benzylation of sulfones with esters via C–O activation
作者:Jing Xiao、Jia Yang、Tieqiao Chen、Li-Biao Han
DOI:10.1039/c6ra07130a
日期:——
The nickel-catalyzed [small alpha]-benzylation of sulfones with readily available benzylic alcohol derivatives was achieved via C-O activation. The transformation was complete in 30 minutes using a simple Ni(COD)2 as a catalyst...
[EN] HYDROXAMIC AND CARBOXYLIC ACID DERIVATIVES HAVING MMP AND TNF INHIBITORY ACTIVITY<br/>[FR] DERIVES DE L'ACIDE HYDROXAMIQUE ET DE L'ACIDE CARBOXYLIQUE DOTES D'UNE ACTIVITE INHIBITRICE VIS A VIS DES MMP ET DU TNF
申请人:DARWIN DISCOVERY LIMITED
公开号:WO1998005635A1
公开(公告)日:1998-02-12
(EN) The invention concerns hydroxamic acid and carboxylic acid derivatives of formulae (I): B-X-(CH2)n-CHR1-(CH2)m-CONHOH and (Ia): B-S(O)1-2-(CH2)n-CHR1-(CH2)m-COOR2, in which X is O, NR3 or S(O)0-2, and the other variables have the definitions given in the claims, having MMP and TNF inhibitory activity.(FR) La présente invention se rapporte à des dérivés de l'acide hydroxamique et de l'acide carboxylique, dotés d'une activité inhibitrice vis à vis des métalloprotéases matricielles (MMP) et du facteur de nécrose des tumeurs (TNF). Ces dérivés sont représentés par les formules (I): B-X-(CH2)n-CHR1-(CH2)m-CONHOH et (Ia): B-S(O)1-2-(CH2)n-CHR1-(CH2)m-COOR2, dans lesquelles X est O, NR3 ou S(O)0-2, les autres variables étant définies dans les revendications.
Highly Reactive Palladium-Catalyzed and Acetonitrile-Mediated Three-Component Reactions for Arylsulfone Synthesis
作者:Muhammad Aliyu Idris、Sunwoo Lee
DOI:10.1021/acs.orglett.2c03430
日期:2022.11.25
Arylsulfone groups play an important role in the synthesis of functionalized molecules. The acetonitrile-mediated three-componentreactions for arylsulfone synthesis were developed in the presence of a 0.00025 mol % palladium catalyst. Arylboronic acids reacted with potassium metabisulfite (K2S2O5) and benzyl bromide in the presence of LiF and a very low concentration of PdCl2 in acetonitrile solvents
芳基砜基团在功能化分子的合成中起着重要作用。乙腈介导的芳基砜合成三组分反应是在 0.00025 mol% 钯催化剂存在下开发的。芳基硼酸与焦亚硫酸钾 (K 2 S 2 O 5 ) 和苄基溴在存在 LiF 和极低浓度 PdCl 2的情况下,在乙腈溶剂中反应,以中等至良好的产率生成相应的苄基芳基砜。与K 2 S 2 O 5反应的各种芳基硼酸和碳亲电试剂在优化条件下生产所需的芳基砜。有人提出乙腈加速了芳基硼酸和 LiF 反应中芳基阴离子物质的产生。
HYDROXAMIC AND CARBOXYLIC ACID DERIVATIVES HAVING MMP AND TNF INHIBITORY ACTIVITY