Tridentate Hydroxy-Functionalised MCM-41-Immobilised Copper(I) Complex as an Efficient and Recyclable Catalyst for Coupling of Aryl Iodides with Thiols
作者:Fang Yao、Rongli Zhang、Yichao Wu、Mingzhong Cai
DOI:10.3184/174751915x14431129629495
日期:2015.10
The C–Scoupling reaction of aryl iodides with thiols was achieved at 110 °C in DMF/dioxane (V/V, 1:9) in the presence of a tridentate hydroxy-functionalised MCM-41-immobilised copper(I) complex [MCM-41-3OH-CuI] with Cs2CO3 as base to afford a variety of diaryl sulfides in good to excellent yields. The MCM-41-3OH-CuI catalyst can be easily recovered by a simple filtration and reused for at least six
THIOARYL SUBSTITUTED INHIBITORS OF ZINC PROTEASES AND THEIR USE
申请人:Rossello Armando
公开号:US20090239829A1
公开(公告)日:2009-09-24
There are described compounds having the general formula (I) below and their pharmaceutically acceptable salts thereof, wherein E, X, m, q, R
1
, R
2
, n and ZBG have the meanings reported in the description useful, in therapy, as inhibitors of zinc metalloproteinases.
heteroaryl, alkyl, or benzylic polyfunctional zinc reagents obtained by the addition of zinc and LiCl to the corresponding organic iodides undergo smooth Pd(0)-catalyzed cross-coupling reactions with aryl bromides, chlorides, and triflates in the presence of PEPPSI as a catalyst. This procedure avoids the manipulation of water and air-sensitive organozincreagents and produces cross-coupling products in high
Copper-Mediated Cyclization−Halogenation and Cyclization−Cyanation Reactions of β-Hydroxyalkynes and <i>o</i>-Alkynylphenols and Anilines
作者:Nalivela Kumara Swamy、Arife Yazici、Stephen G. Pyne
DOI:10.1021/jo1005119
日期:2010.5.21
The CuX (X = I, Br, Cl, CN)-mediated cyclization−halogenation and cyclization−cyanation reactions of β-hydroxyalkynes and o-alkynylphenol and -aniline derivatives give rise to 3-halo- and 3-cyanofuro[3,2-b]pyrroles, 3-iodo-, 3-bromo-, and 3-cyanobenzofurans, and 3-cyanoindoles, respectively.
CuX(X = I,Br,Cl,CN)介导的β-羟基炔烃与邻炔基苯酚和-苯胺衍生物的环化-卤化和环化-氰化反应生成3-卤代和3-氰基呋喃[3,2 - b ]吡咯,3-碘,3-溴-和3- cyanobenzofurans和3- cyanoindoles,分别。
Synthesis of imides <i>via</i> palladium-catalyzed three-component coupling of aryl halides, isocyanides and carboxylic acids
作者:Bo Wang、Dan He、Beige Ren、Tuanli Yao
DOI:10.1039/c9cc08438j
日期:——
A palladium-catalyzed three-component synthesis of acyclic imides from feedstock arylhalides, carboxylic acids and isocyanides through the intermediacy of isoimides has been developed. The key to the success of this approach was controlled isocyanide slow addition and organic/aqueous biphasic conditions. This transition-metal-catalyzed approach features readily available starting materials, atom-