91306-54-6Relevant articles and documents
SINGLE-ELECTRONIC CLEAVAGE OF A CARBON-SULFUR BOND IN THE CATHODIC REDUCTION OF 2,3-BIS(PHENYLSULPHONYL)-1,4-DIMETHYLBENZENE IN DIMETHYL SULPHOXIDE
Novi, Marino,Dell'Erba, Carlo,Garbarino, Giacomo,Scarponi, Giuseppe,Capodaglio, Gabriele
, p. 951 - 954 (1984)
2,3-Bis(phenylsulphonyl)-1,4-dimethylbenzene, dissolved in dimethyl sulphoxide, undergoes a one-electron single reduction wave at -1,6 V respect to Ag-Ag(1+)(0.01M).The reduction was studied by differential pulse polarography, cyclic voltametry, and controlled-potential electrolysis.Fast chemical steps follow the initial reduction and the isolated products are 1,4-dimethyldibenzothiophene 5,5-dioxide and 1,4-dimethyl-2-(phenylsulphonyl)benzene.In some experiments small percentages of 5a,9a-dihydro-1,4-dimethyldibenzothiophene 5,5-dioxide are also obtained.The results argue in support of the electron-transfer mechanism previously proposed for the photoinduced reactions of the same substrate with sodium arenethiolates in dimethyl sulphoxide.
Electrochemical Evidence for an Unusual Base-Catalysed Chain Mechanism in an Intramolecular Homolytic Arylation
Novi, Marino,Garbarino, Giacomo,Dell'Erba, Carlo,Petrillo, Giovanni
, p. 1205 - 1207 (2007/10/02)
Cyclic voltammetry and controlled-potential electrolysis of the disulphone (1a) in dimethyl sulphoxide show that its transformation into the dibenzothiophene dioxide (2a), in the presence of a base, is an efficient electrocatalytic process.