Sulfonyl azides have been widely used as sulfonamido, diazo, and azido donors, as well as all-nitrogen 1,3-dipoles donors in synthetic chemistry. Here, the sulfonyl azides were used as efficient sulfonyl donors, which is very unusual. Trifluoromethanesulfonic acid-induced formation of the sulfonyl cation reactive species from sulfonyl azides was developed and used for the first time to couple various
An efficient method for aromatic Friedel–Crafts alkylation, acylation, benzoylation, and sulfonylation reactions
作者:Ravi P Singh、Rajesh M Kamble、Kusum L Chandra、P Saravanan、Vinod K Singh
DOI:10.1016/s0040-4020(00)01005-x
日期:2001.1
Aromatic electrophilic substitution reactions such as alkylation, acylation, benzoylation, and sulfonylation were studied in the presence of a catalytic amount of Cu(OTf)2 and Sn(OTf)2. Cu(OTf)2 was very efficient for alkylation, acylation, and benzoylation reactions. However, in case of sulfonylation reactions, Sn(OTf)2 gave better results.
Synthesis of Diaryl Sulfones at Room Temperature: Cu-Catalyzed Cross-Coupling of Arylsulfonyl Chlorides with Arylboronic Acids
作者:Feng Hu、Xiangyang Lei
DOI:10.1002/cctc.201500174
日期:2015.5.18
An efficient and convenient method for the synthesis of diaryl sulfones was developed through the Cu‐catalyzedcross‐couplings of arylsulfonyl chlorides and arylboronicacids at room temperature in open air. This method is characterized by the use of inexpensive and readily available catalyst and substrates, mildreaction conditions, wide functionality tolerance, short reaction times for most substrates
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。
CuI catalyzed sulfonylation of organozinc reagents with sulfonyl halides
作者:Ying Fu、Wenbo Zhu、Xingling Zhao、Helmut Hügel、Zhouqiang Wu、Yuhu Su、Zhengyin Du、Danfeng Huang、Yulai Hu
DOI:10.1039/c4ob00638k
日期:——
In this study, a facile CuI catalyzed synthesis of sulfones involving a nucleophilic addition of functionalized organozinc reagents to organic sulfonylchlorides is realized. This reaction proceeds efficiently at room temperature, giving rise to various functional group substitutedsulfones, generally in moderate to high yields. The method provides a novel, simple, and promising strategy for functionalized