Reactivity of Selenocystine and Tellurocystine: Structure and Antioxidant Activity of the Derivatives
作者:Kandhan Satheeshkumar、Saravanan Raju、Harkesh B. Singh、Ray J. Butcher
DOI:10.1002/chem.201803776
日期:2018.11.27
these aminoacids, i.e., oxidation of 5 and 6, has been performed at various pH values. Hydrogen peroxide was used as an oxidant and it was treated with 5 and 6 in excess in acidic and basic media. Compound 5, upon oxidation, afforded SeIV and SeVI products. Selenocysteic acid [HO3SeCH2CH(NH2)COOH] 9, a novel SeVI compound, was isolated and characterised by single‐crystal X‐ray diffraction studies. In
Sodium Telluride in<i>N</i>-Methyl-2-pyrrolidone: An Efficient Telluration System for the Synthesis of Aromatic Tellurides and Ditellurides
作者:Hitomi Suzuki、Tohru Nakamura
DOI:10.1055/s-1992-26162
日期:——
Sodium telluride prepared in situ from tellurium and sodium hydride in N-methyl-2-pyrrolidone was found to act as an efficient tellurating agent for nonactivated aromatic iodides, providing a simple route to a variety of diaryl tellurides, alkyl aryl tellurides and diaryl ditellurides.