Stereo- and Regiospecific Cu-Catalyzed Cross-Coupling Reaction of Vinyl Iodides and Thiols: A Very Mild and General Route for the Synthesis of Vinyl Sulfides
作者:M. Shahjahan Kabir、Michael L. Van Linn、Aaron Monte、James M. Cook
DOI:10.1021/ol801149n
日期:2008.8.7
A mild and efficient method for the copper-catalyzed formation of vinylic carbon-sulfur bonds has been developed. The desired vinyl sulfides are obtained in good to excellent yields, with full retention of stereochemistry. This method is particularly noteworthy given its mild reaction conditions, simplicity, and generality, as well as low cost of the catalyst system.
A Very Active Cu-Catalytic System for the Synthesis of Aryl, Heteroaryl, and Vinyl Sulfides
作者:M. Shahjahan Kabir、Michael Lorenz、Michael L. Van Linn、Ojas A. Namjoshi、Shamim Ara、James M. Cook
DOI:10.1021/jo1004179
日期:2010.6.4
facilitated the Cu-catalyzed cross-coupling reactions of alkyl, aryl, or heterocyclic thiols with either alkyl, aryl, heterocyclic, or substitutedvinylhalides. This new catalytic system promoted the mild and efficient stereo- and regiospecific synthesis of biologically important vinylsulfides. The yields obtained using electron-rich substitutedvinylsulfides with this catalyst system are generally
A new class of potential anti-tuberculosis agents: Synthesis and preliminary evaluation of novel acrylic acid ethyl ester derivatives
作者:M. Shahjahan Kabir、Ojas A. Namjoshi、Ranjit Verma、Rebecca Polanowski、Sarah M. Krueger、David Sherman、Marc A. Rott、William R. Schwan、Aaron Monte、James M. Cook
DOI:10.1016/j.bmc.2010.05.016
日期:2010.6.15
Novel acrylic acid ethyl ester derivatives were synthesized and evaluated as potentialagents against Mycobacterium species. A versatile and efficient copper-catalyzed coupling process was developed and used to prepare a library of substituted acrylic acid ethyl ester analogs. Minimum inhibitory concentration assays indicated that two of these compounds 3 and 4 have greater in vitro activity against
Microwave-promoted regio- and stereoselective vinylation of heterocyclic thiols
作者:Nimmakuri Rajesh、Rupam Sarma、Dipak Prajapati
DOI:10.1039/c3ra47417h
日期:——
The first stereoselective vinylation of heterocyclic thiols has been reported. Heterocyclic thiols are shown to react efficiently with activated terminal alkynes in an anti-Markovnikov fashion in absence of any catalyst or additive under microwave irradiation to give Z-selective vinyl sulfides.
首次报道了杂环硫醇的立体选择性乙烯基化反应。研究表明,在没有任何催化剂或添加剂的情况下,杂环硫醇可在微波辐照下与活化的末端炔以反马尔科夫尼科夫方式高效反应,生成 Z 选择性乙烯基硫化物。
Regio- and Stereoselective Synthesis of Functionalized Vinyl Sulfides Based on Pyridine-2-thiol and Propynoic Acid and Its Derivatives
作者:V. A. Potapov、R. S. Ishigeev、M. V. Musalov、S. V. Zinchenko、Yu. A. Chuvashev、T. N. Borodina、S. V. Amosova
DOI:10.1134/s1070428018120102
日期:2018.12
Regio- and stereoselective methods of synthesis of 3-(pyridin-2-ylsulfanyl)prop-2-enoic acid and alkyl (Z)-3-(pyridin-2-ylsulfanyl)prop-2-enoates have been developed on the basis of nucleophilic addition of pyridine-2-thiol to propynoic acid and alkyl propynoates. Reactions of alkyl (Z)-3-(pyridin-2-ylsulfanyl)prop-2- enoates with methyl iodide afforded 2-[(3-alkoxy-3-oxoprop-1-enyl)sulfanyl]-1-methylpyridinium