278790-75-3Relevant academic research and scientific papers
A sulfur-containing diselenide as an efficient chiral reagent in asymmetric selenocyclization reactions
Tiecco, Marcello,Testaferri, Lorenzo,Marini, Francesca,Sternativo, Silvia,Bagnoli, Luana,Santi, Claudio,Temperini, Andrea
, p. 1493 - 1502 (2001)
Treatment of the di-2-[(1S)-1-(methylthio)ethyl]phenyl diselenide with bromine and silver triflate afforded the corresponding selenyl triflate which was used in situ as a strongly electrophilic selenium reagent to effect the asymmetric synthesis of oxygen- or nitrogen-containing heterocycles. Cyclic ethers, lactones, lactams or N-protected pyrrolidines have been prepared in good yield with complete regioselectivity and high diastereoselectivity.
Efficient asymmetric selenocyclizations of alkenyl oximes into cyclic nitrones and 1,2-oxazines promoted by sulfur containing diselenides
Tiecco, Marcello,Testaferri, Lorenzo,Bagnoli, Luana,Purgatorio, Valentina,Temperini, Andrea,Marini, Francesca,Santi, Claudio
, p. 3297 - 3304 (2007/10/03)
Treatment of the di-2-[(1S)-1-(methylthio)ethyl]phenyl diselenide or of the di-2-methoxy-6-[(1S)-1-methylthio)ethyl]phenyl diselenide with bromine and silver triflate afforded the corresponding electrophilic selenylating triflates which were used in situ
Efficient asymmetric selenomethoxylation and selenohydroxylation of alkenes with a new sulfur containing chiral diselenide
Tiecco, Marcello,Testaferri, Lorenzo,Bagnoli, Luana,Marini, Francesca,Temperini, Andrea,Tomassini, Cristina,Santi, Claudio
, p. 3241 - 3245 (2007/10/03)
The synthesis of a new chiral non-racemic sulfur containing diselenide is described. The electrophilic selenium reagent, produced from this diselenide by treatment with bromine and silver triflate, has been used to effect the selenomethoxylation and the selenohydroxylation of alkenes. These addition reactions occurred with good chemical yield and with high diastereoselectivities. (C) 2000 Elsevier Science Ltd.
