75456-42-7Relevant articles and documents
Ring-Closure Reactions Initiated by the Peroxydisulfate Ion Oxidation of Diphenyl Diselenide
Tiecco, M.,Testaferri, L.,Tingoli, M.,Bartoli, D.,Balducci, R.
, p. 429 - 434 (2007/10/02)
The oxidation of diphenyl diselenide with ammonium peroxydisulfate proceeded cleanly to afford phenylselenium cations and sulfate anions.This is a very simple and efficient method to produce phenylselenium cations in the absence of nucleophilic counterions.This reaction was employed to effect selenium-induced ring closure reactions starting from alkenes containing internal nucleophiles.Thus, unsaturated alcohols and amides, β-diketones and β-keto esters gave the products of phenylselenoetherification.The same process occurred with dienes and unsaturated ketones when the reaction was carried out in the presence of water or methanol, respectively.Unsaturated acids, esters, and imides afforded the phenylselenolactonization products.
PHENYLSELENENYL CHLORIDE AS A REAGENT FOR THE FACILE PREPARATION OF CYCLIC ETHERS FROM DIOLEFINS
Uemura, Sakae,Toshimitsu, Akio,Aoai, Toshiaki,Okano, Masaya
, p. 1533 - 1536 (2007/10/02)
Various cyclic ethers are prepared in good to excellent yields by treating diolefins with phenylselenenyl chloride in aqueous acetonitrile.This is the most facile method for organoselenium-induced formation of cyclic ethers from diolefins so far reported.