Journal of the Chemical Society. Perkin transactions II p. 817 - 823 (1991)
Update date:2022-08-02
Topics:
Benaichouche, Meriem
Bosser, Gerard
Paris, Jacky
Plichon, Vincent
Electrogenerated polysulphide ions S3.- and S82- readily react with haloaromatics, ArX, activated by nitro electron-withdrawing substituents in dimethylacetamide.Nucleophilic substitutions on fluoro-2,4-dinitrobenzene (1a; X = F), halo-4-nitrobenzenes (2a; X = F, Cl, Br, I) and 2-nitrobenzenes (3a; X = F, Cl, Br, I) lead to the coloured arylmonosulphide (1b; X = S-) and aryldisulphide (2c-3c; X = S2-) ions.From the reaction kinetics studied by UV-VIS spectrophotometry, the order of reactivity is ArF > ArBr >, ArI > ArCl.The proposed SNAr mechanism implies that the dianions S62- and S82- are the nucleophilic agents (S62- >> S82-) rather than the S3.- and S4.- radical anions.
View MoreHuaian Double Win Chemicals Co.,Ltd.
Contact:+86-13511538872
Address:Blk 43,Greenland Century Town,Huaian District, Huaian City,Jiangsu Province,China
tianjin kailiqi biotechnology co.，ltd
Contact:+86-22-23754520
Address:Tianjin hi tech development in Xiqing District 2 Road No. 2 Building No. 5 414
Beijing Jin Ming Biotechnology Co., Ltd.
website:http://www.chemicalbook.com/ShowSupplierProductsList19924/0.htm
Contact:15801484223;18511084608
Address:Beijing
Shao Xing Empire Import&Export CO.,ltd
Contact:86-575-82127757
Address:11#, Weiwu Road, Shangyu Industrial Park, Hangzhou Bay, Hangzhou, Zhejiang Province, China
ShiJiaZhuang Dowell Chemical Co.,Ltd.
website:http://www.dowechem.com
Contact:+86-13463963265
Address:Xiyangling village, high tech Zone, Shijiazhuang，Hebei, China
Doi:10.1021/ja005800o
(2001)Doi:10.1021/acsmedchemlett.0c00432
(2020)Doi:10.1016/S0040-4039(00)80451-7
(1988)Doi:10.1039/b910321j
(2009)Doi:10.1007/BF00755686
(1988)Doi:10.1021/ol902169k
(2009)
