Cross-Coupling of Sodium Sulfinates with Aryl, Heteroaryl, and Vinyl Halides by Nickel/Photoredox Dual Catalysis
作者:Huifeng Yue、Chen Zhu、Magnus Rueping
DOI:10.1002/anie.201711104
日期:2018.1.26
catalyzed sulfonylation reaction of aryl, heteroaryl, and vinylhalides has been achieved for the first time. This newly developed sulfonylation protocol provides a versatile method for the synthesis of diverse aromatic sulfones at room temperature and shows excellent functional group tolerance. The electrophilic coupling partners are not limited to aryl, heteroaryl, and vinyl bromides and iodides, but also
Magnetically Separable Copper Ferrite Nanoparticles-Catalyzed Synthesis of Diaryl, Alkyl/Aryl Sulfones from Arylsulfinic Acid Salts and Organohalides/Boronic Acids
作者:B. T. V. Srinivas、Vikas S. Rawat、Kavitha Konda、Bojja Sreedhar
DOI:10.1002/adsc.201301003
日期:2014.3.10
inexpensive, non‐toxic and environmentally benign catalytic system comprised of magnetically separable copper ferrite (CuFe2O4) nanoparticles has been developed for the synthesis of diaryl, alkyl/aryl sulfones. Arylsulfinic acid salts are coupled with various alkyl/aryl halides/boronicacids to afford the corresponding diaryl, alkyl/aryl sulfones in good to excellent yields under the identical catalytic system
由可磁分离的铁氧体铜(CuFe 2 O 4)纳米粒子组成的可回收,廉价,无毒且对环境无害的催化体系已经开发出来,用于合成二芳基,烷基/芳基砜。在相同的催化体系下,将芳基亚磺酸盐与各种烷基/芳基卤化物/硼酸偶联,以良好或优异的收率得到相应的二芳基,烷基/芳基砜。宽泛的官能团耐受性,加上通过施加外部磁场即可轻松回收催化剂,以及连续五个连续循环始终如一的高催化效率,使得该方案在操作上具有吸引力。
Nano copper catalyzed synthesis of symmetrical/unsymmetrical sulfones from aryl/alkyl halides and p-toluenesulfonylmethylisocyanide: TosMIC as a tosyl source
作者:Mandalaparthi Phanindrudu、Pogula Jaya、Pravin R. Likhar、Dharmendra Kumar Tiwari
DOI:10.1016/j.tet.2020.131263
日期:2020.6
antitumor, and anticancer. Herein, a magnetically induced nano copper-catalyzed efficient and mild route for the synthesis of biaryl and alkyl/aryl sulfones from aryl/alkyl halides and tosylmethyl isocyanide (TosMIC) has been developed. A variety of aryl and alkyl sulfones have been obtained in very good to excellent yields. In this newly developed protocol TosMIC acts as sulfonyl source. The catalyst
A novel arylation of sulfonamides with boronic acids to afford numerous diaryl sulfones via a visible light-mediated N–S bond cleavage other than the typical transition-metal-catalyzed C(O)–N bond activation is described. This methodology, which represents the first catalyst-free protocol for the sulfonylation of boronic acids, is characterized by its simple reaction conditions, good functional group
QUINOLINE DERIVATIVES USEFUL IN THE TREATMENT OF MGLUR5 RECEPTOR-MEDIATED DISORDERS
申请人:Keseru Gyorgy
公开号:US20090270371A1
公开(公告)日:2009-10-29
Compounds of formula (I): and/or enantiomers and/or racemates and/or diastereomers and/or pharmaceutically acceptable salts thereof formed with acids or bases, to the process for their preparation, to the intermediates of the preparation process, to the pharmaceutical formulations containing these compounds and to their use in the prevention and/or treatment of mGluR5 receptor-mediated disorders.