Deoxygenation of sulfoxides, selenoxides, telluroxides, sulfones, selenones and tellurones with Mg–MeOH
作者:Jitender M. Khurana、Vandana Sharma、Silvi A. Chacko
DOI:10.1016/j.tet.2006.11.027
日期:2007.1
The deoxygenation of a variety of sulfoxides, selenoxides, telluroxides, sulfones, selenones and tellurones has been reported with Mg–MeOH at room temperature in nearly quantitative yields. The deoxygenation is proposed to proceed by SET from Mg to the substrate.
Aqueous sodium hypochlorite mediated chemoselective oxidation of chalcogenides to monoxides and dioxides by microwave exposure
作者:Jitender M. Khurana、Bhaskara Nand
DOI:10.1139/v10-060
日期:2010.9
A solvent-free, rapid, and highly selective oxidation of sulfides, selenides, and tellurides (chalcogenides) to the corresponding monoxides (sulfoxides, selenoxides, and telluroxides) or the corresponding dioxides (sulfones, selenones, and tellurones) has been developed using aqueous sodium hypochlorite on solid supports by exposure to microwave. Chemoselectivity and quantitative yields have been attained
A General and Efficient Method To Convert Selenides into Selenones by Using HOF·CH<sub>3</sub>CN
作者:Shay Potash、Shlomo Rozen
DOI:10.1002/ejoc.201300694
日期:2013.9
A general route for the preparation of selenones (R2SeO2) is presented. This task is achieved through the quick and high-yielding reaction of selenides (R2Se) with HOF·CH3CN. The reaction tolerates some elusive electron-deficient and sterically hindered selenides. Some mechanistic aspects are also investigated and discussed.
Exploring the reactivity of <sub>L</sub>-tellurocystine, Te-protected tellurocysteine conjugates and diorganodiselenides towards hydrogen peroxide: synthesis and molecular structure analysis
作者:Abhishek Tripathi、Rajesh Deka、Ray J. Butcher、David R. Turner、Glen B. Deacon、Harkesh B. Singh
DOI:10.1039/d2nj00997h
日期:——
[Te2CH2CH(NH3+)COO−}2] (4) with H2O2 in the presence of HBr resulted in the formation of cyclic, zwitterionic organotellurolate(IV) species, namely [Te−CH2CH(NH3+)COO}(Br)3] (5). The H2O2 oxidation of Te-protected tellurocysteine derivatives [RTeCH2CH(NH2)COOH}] [R = C6H5 (6) and 4-MeC6H4 (7)] in the presence of HCl resulted in the formation of chlorotellurane species [(C6H5)TeCH2CH(NH3+)COOH}(Cl)2]Cl
L-碲半胱氨酸 [Te 2 CH 2 CH(NH 3 + )COO - } 2 ] ( 4 ) 与 H 2 O 2在 HBr 存在下的氧化反应导致形成环状的两性离子有机碲酸盐( IV )种,即[Te - CH 2 CH(NH 3 + )COO}(Br) 3 ] ( 5 )。Te-保护的碲半胱氨酸衍生物 [RTeCH 2 CH(NH 2 )COOH}] [R = C]的 H 2 O 2氧化6 H 5 ( 6 ) 和 4-MeC 6 H 4 ( 7 )] 在 HCl 存在下形成氯碲烷物质 [(C 6 H 5 )TeCH 2 CH(NH 3 + )COOH}(Cl ) 2 ]Cl ( 8 ) 和 [(4-MeC 6 H 5 )TeCH 2 CH(NH 3 + )COO}(Cl)]Cl ( 9 )。二有机二硒化物的氧化反应 R 2 Se 2 [R = 4-MeC 6 H 4 ( 10),
Derkach,N.Ya. et al., Journal of Organic Chemistry USSR (English Translation), 1974, vol. 10, p. 810 - 812