Formation of C–C, C–S and C–N bonds catalysed by supported copper nanoparticles
作者:Alexander Yu. Mitrofanov、Arina V. Murashkina、Iris Martín-García、Francisco Alonso、Irina P. Beletskaya
DOI:10.1039/c7cy01343d
日期:——
to form carbon–carbon, carbon–sulfur and carbon–nitrogen bonds. CuNPs/zeolite has been found to be the best one in the Sonogashira reaction of aryl iodides and arylacetylenes, as well as in the coupling of arylhalides with aryl and alkyl thiols, being reusable in both cases. However, the arylation of nitrogen-containing heterocycles (imidazole, pyrazole, benzimidazole and indole) has been better accomplished
Thioetherification via Photoredox/Nickel Dual Catalysis
作者:Matthieu Jouffroy、Christopher B. Kelly、Gary A. Molander
DOI:10.1021/acs.orglett.6b00208
日期:2016.2.19
Hypervalent alkylsilicates represent new and readily accessible precursors for the generation of alkylradicalsunder photoredox conditions. Alkylradicals generated from such silicates serve as effective hydrogen atom abstractors from thiols, furnishing thiyl radicals. The reactive sulfur species generated in this manner can be funneled into a nickel-mediated cross-coupling cycle employing aromatic
Radical Addition to Isonitriles: A Route to Polyfunctionalized Alkenes through a Novel Three-Component Radical Cascade Reaction
作者:Rino Leardini、Daniele Nanni、Giuseppe Zanardi
DOI:10.1021/jo991871y
日期:2000.5.1
The reaction of aromatic disulfides, alkynes, and isonitriles under photolytic conditions affords polyfunctionalized alkenes--beta-arylthio-substituted acrylamides or acrylonitriles--in fair yields through a novel three-componentradical cascade reaction. The procedure entails addition of a sulfanyl radical to the alkyne followed by attack of the resulting vinyl radical to the isonitrile. A fast reaction
A gold mediated C−S cross-coupling of aryldiazonium salts with thiols is described. The relevance of the protocol is the use of the readily available and simple gold complex Me2SAuCl. The reaction proceeds under soft conditions and has a broad scope in both the diazonium salt and the thiol.
描述了金介导的芳基重氮盐与硫醇的 C−S 交叉偶联。该协议的相关性是使用容易获得且简单的金络合物 Me 2 SAuCl。该反应在温和的条件下进行,并且在重氮盐和硫醇中都有较宽的范围。
17 Beta-hydroxysteroid dehydrogenase type 3 inhibitors for the treatment of androgen dependent diseases
申请人:Schering Corporation
公开号:US20040132736A1
公开(公告)日:2004-07-08
There are disclosed compounds of the formula (I):
1
prodrugs thereof, or pharmaceutically acceptable salts of the compounds or of said prodrugs which are useful as inhibitors of Type 3 17 &bgr;-Hydroxysteroid Dehydrogenase. Also disclosed are pharmaceutical compositions containing said compounds and their use for the treatment or prevention of androgen dependent diseases.