862421-95-2Relevant academic research and scientific papers
Chiral seleno-amines from indium selenolates. A straightforward synthesis of selenocysteine derivatives
Braga, Antonio L.,Schneider, Paulo H.,Paixao, Marcio W.,Deobald, Anna M.,Peppe, Clovis,Bottega, Diana P.
, p. 4305 - 4307 (2006)
A simple and efficient procedure for the synthesis of chiral β-seleno-amines derivatives from a one-pot indium(I) iodide-mediated aziridine ring opening with diorganoyl diselenides has been developed. As an application, the synthesis of selenocysteine and
Zn in ionic liquid: An efficient reaction media for the synthesis of diorganyl chalcogenides and chalcogenoesters
Narayanaperumal, Senthil,Alberto, Eduardo E.,Gul, Kashif,Kawasoko, Cristiane Yuriko,Dornelles, Luciano,Rodrigues, Oscar E.D.,Braga, Antonio Luiz
experimental part, p. 4723 - 4730 (2011/06/27)
A straightforward and efficient methodology is described to synthesize structurally diverse diorganyl selenides, sulfides, seleno- and thioesters by using commercially available Zn dust in ionic liquid. Excellent yields were achieved under neutral conditions at room temperature in a short time. The solvent/ionic liquid is reusable and exhibited higher performance as compared with organic solvents.
Straightforward method for the synthesis of selenocysteine and selenocystine derivatives from L-serine methyl ester
Braga, Antonio L.,Wessjohann, Ludger A.,Taube, Paulo S.,Galetto, Fabio Z.,De Andrade, Fabiano M.
supporting information; experimental part, p. 3131 - 3137 (2010/11/02)
A set of selenoamino acids has been efficiently synthesized under smooth conditions by a simple, flexible and modular strategy. In this method, O-mesylated l-serine methyl ester is generated in situ and directly substituted with various selenolate anions
Synthesis of diorganyl selenides mediated by zinc in ionic liquid
Narayanaperumal, Senthil,Alberto, Eduardo E.,Gul, Kashif,Rodrigues, Oscar E. D.,Braga, Antonio L.
supporting information; experimental part, p. 3886 - 3889 (2010/07/05)
Figure presented A new approach for the synthesis of diorganyl selenides is described. By using economically attractive zinc dust in BMIM-BF4, a series of diorganyl selenides were efficiently achieved in excellent yields, under neutral reaction conditions. Compared to the usual organic solvents, BMIM-BF4 exhibited higher performance with the advantage to be reused up to five successive runs.
Internally stabilized selenocysteine derivatives: Syntheses, 77Se NMR and biomimetic studies
Phadnis, Prasad P.,Mugesh
, p. 2476 - 2481 (2007/10/03)
Selenocystine ([Sec]2) and aryl-substituted selenocysteine (Sec) derivatives are synthesized, starting from commercially available amino acid L-serine. These compounds are characterized by a number of analytical techniques such as NMR (1H, 13C and 77Se) and TOF mass spectroscopy. This study reveals that the introduction of amino/imino substituents capable of interacting with selenium may stabilize the Sec derivatives. This study further suggests that the oxidation-elimination reactions in Sec derivatives could be used for the generation of biologically active selenols having internally stabilizing substituents. The Royal Society of Chemistry 2005.
Synthesis of optically pure β-phenylselenoalanine through serine-β-lactone: A useful precursor of dehydroalanine
Sakai, Mitsuru,Hashimoto, Kimiko,Shirahama, Haruhisa
, p. 319 - 324 (2007/10/03)
Optically pure L- and D-β-phenylselenoalanines (PhSeAla), useful precursors of dehydroalanine, were synthesized from L- and D-serine-β-lactone. Elimination reactions of the phenylseleno group to form the dehydroalanine were examined.
