67168-93-8Relevant articles and documents
A new selective dichlorination of C-C double bonds
Sakai, Kunikazu,Sugimoto, Kikuo,Shigeizumi, Sanae,Kondo, Kiyosi
, p. 737 - 740 (1994)
A new dichlorination procedure of C-C double bond was developed with hexachloroethane as chlorinating agent and RuCl2(PPh3)3 as catalyst. The reaction is highly selective for C-C double bond; other functional groups are un
Dichlorination of olefins with diphenyl sulfoxide/oxalyl chloride
Ding, Rui,Huang, Shuai,Wang, Qiyi,Liu, Yongguo,Sun, Baoguo,Tian, Hongyu
supporting information, p. 2319 - 2330 (2020/07/03)
The combination of diphenyl sulfoxide and oxalyl chloride was used to accomplish the dichlorination of olefins, in which chlorodiphenylsulfonium salt generated in situ was proposed to be the real active species as a chloronium ion source.
Vanadium-catalyzed chlorination under molecular oxygen
Moriuchi, Toshiyuki,Fukui, Yasuhiro,Kato, Satoshi,Kajikawa, Tomomi,Hirao, Toshikazu
, p. 177 - 180 (2015/03/04)
A catalytic chlorination of ketones was performed by using a vanadium catalyst in the presence of Bu4NI and AlCl3 under atmospheric molecular oxygen. This catalytic chlorination could be applied to the chlorination of alkenes to give the corresponding vic-dichlorides. AlCl3 was found to serve as both a Lewis acid and a chloride source to induce the facile chlorination. A combination of Bu4NI and AlI3 in the presence of a vanadium catalyst under atmospheric molecular oxygen induced the iodination of ketones.
An effective dual copper-and sulfide-catalytic system for the epoxidation of aldehydes with phenyldiazomethane
Pereira, Ana,Martín, Carmen,Maya, Celia,Belderrain, Tomás R.,Pérez, Pedro J.
supporting information, p. 2942 - 2951 (2014/03/21)
Epoxides have been obtained from alde-hydes and phenyldiazomethane using catalytic amounts of both the copper homoscorpionate com-plexes Tp xCuL (Tpx = homoscorpionate ligand; L = acetonitrile or tetrahydrofuran, THF) and dimethyl sulfide (SMe2) in high yields and diasteroselectivities, and with activities higher (TOF = 46 h-1) than those already known with rhodium-or copper-based cata-lysts. Among the copper(I) homoscorpionate com-plexes tested, TpBr3Cu(NCCH 3) showed the highest catalytic activity under mild conditions. The catalytic activity is controlled by electronic effects induced by the Tp x ligand as well as by the stability of the TpxCu(SR 2) adducts. Indeed, in the case of TpMs as ligand, the TpMsCu(THT) (THT = tetrahydrothio-phene) and Tp MsCu(SMe2) species could be isolated as very stable crystalline solids, the molecular struc-ture of the former being confirmed by single-crystal X-ray diffraction analysis. The in situ generation of PhCHN 2 from benzaldehyde tosylhydrazone sodium salt at 60 °C in methyl tert-butyl ether as solvent and TpMsCu(THF) as the catalyst also showed high cata-lytic activities, improving those already reported with copper-based catalysts.
