21948-47-0Relevant academic research and scientific papers
Effective bromo and chloro peroxidation catalysed by tungsten(vi) amino triphenolate complexes
Badetti, Elena,Romano, Francesco,Marchiò, Luciano,Ta?kesenlio?lu, Sara,Da?tan, Arif,Zonta, Cristiano,Licini, Giulia
, p. 14603 - 14608 (2016/09/28)
Amino triphenolate tungsten(vi) complexes have been prepared and they proved to be efficient catalysts in haloperoxidation reactions using hydrogen peroxide as a terminal oxidant and inorganic sources of halides. In particular, interesting results have been obtained in the challenging chloroperoxidation reactivity (catalyst loading down to 0.05% with TONs up to 900). A comparison among three different metal complexes bearing the same ligand (vanadium(v), molybdenum(vi) and tungsten(vi)) showed much better performances of the last complex both on bromo and chloro peroxidations.
Vicinal dichlorination of olefins using NH4Cl and oxone
Swamy, Peraka,Reddy, Marri Mahender,Kumar, Macharla Arun,Naresh, Mameda,Narender, Nama
, p. 251 - 257 (2014/03/21)
A mild and efficient protocol for the preparation of 1,2-dichloroalkane derivatives from olefins using NH4Cl and Oxone at room temperature is described. A variety of terminal, internal, and cyclic alkenes reacted smoothly to give the corresponding dichlorinated products in good to excellent yields. Moreover, 1,2-disubstituted symmetrical and unsymmetrical olefins dichlorinated with moderate to excellent diastereoselectivity. This method precludes the use of acidic additives and transition metals in the synthesis of vicinal dichlorides.
vic-Dichlorination of olefins with sodium chlorite, Mn(acac)3, and moist alumina in dichloromethane
Yakabe, Shigetaka,Hirano, Masao,Morimoto, Takashi
, p. 1871 - 1878 (2007/10/03)
Aliphatic, alicyclic, and aromatic alkenes underwent smooth vicdichlorination upon treatment with a reagent combination of NaClO2, Mn(acac)3 catalyst, and chromatographic neutral alumina preloaded with a small amount of water in dichloromethane under mild conditions.
Selective manganese-mediated transformations using the combination: KMnO4/Me3SiCl
Marko, Istvan E.,Richardson, Paul R.,Bailey, Mark,Maguire, Anita R.,Coughlan, Niall
, p. 2339 - 2342 (2007/10/03)
A novel manganese reagent, generated from KMnO4 and Me3SiCl, in the presence of a quaternary ammonium salt, is shown to smoothly dichlorinate alkenes, open epoxides and chemoselectively oxidise sulfides to sulfoxides.
Controlling the reactivity of permanganate anion. Novel, stereospecific, dichlorination of olefins
Marko,Richardson
, p. 1831 - 1834 (2007/10/02)
Potassium permanganate reacts with oxalyl chloride to form a chlorine-containing manganese catalyst, of yet unknown structure, that stereospecifically trans-dichlorinates olefins.
THE CIS CHLORINATION OF ALKENES USING SELENIUM REAGENTS
Morella, Angelo M.,Ward, A. David
, p. 1197 - 1200 (2007/10/02)
The phenylselenenyl chloride adduct from alkenes can be oxidised and the seleno moiety can be displaced by chloride to give high yields of dichlorides with cis geometry.
Chlorination of Organic Compounds by Means of Polymer-supported Chlorine
Bongini, Alessandro,Cainelli, Gianfranco,Contento, Michele,Manescalchi, Francesco
, p. 1278 - 1279 (2007/10/02)
Chlorination of organic compounds is achieved, under mild conditions, using chlorine incorporated into an anion-exchange resin.
