891202-51-0Relevant academic research and scientific papers
Synthesis of chiral β-chalcogen amine derivatives and Gram-positive bacteria activity
Vargas, Josimar,Gul, Kashif,Ravanello, Bruno B.,Dornelles, Luciano,Soares, Letiere C.,Rodrigues, Oscar E. D.,Narayanaperumal, Senthil,Alves, Camilla F. S.,Schneider, Taiane,Vaucher, Rodrigo De A.,Santos, Roberto C. V.
supporting information, p. 10444 - 10448,5 (2012/12/12)
Efficient ring opening reaction between aziridines and diphenyl dichalogenides using HCl, Zn° in ionic liquid is disclosed, affording chiral β-chalcogen amines derivatives in good yields under mild reaction condition. The ionic liquid was further reused f
Efficient ring opening of protected and unprotected aziridines promoted by stable zinc selenolate in ionic liquid
Salman, Syed M.,Schwab, Ricardo S.,Alberto, Eduardo E.,Vargas, Josimar,Dornelles, Luciano,Rodrigues, Oscar E. D.,Braga, Antonio L.
supporting information; experimental part, p. 69 - 72 (2011/02/25)
A highly efficient protocol is reported for the synthesis of chiral β-seleno amines via the ring-opening reaction of aziridines. Under neutral conditions, employing a stable phenyl selenolate specie (PhSeZnBr) and (BMIM)BF4 as solvent, β-seleno
Modular synthesis of chiral N-protected β-seleno amines and amides via cleavage of 2-oxazolidinones and application in palladium-catalyzed asymmetric allylic alkylation
Sehnem, Jasquer A.,Vargas, Fabricio,Milani, Priscila,Nascimento, Vanessa,Braga, Antonio L.
, p. 1262 - 1268 (2008/12/22)
A set of chiral β-seleno amines have been efficiently synthesized via the ring-opening reaction of chiral N-acyl oxazolidinones by selenium nucleophiles. These compounds could be transformed into β-seleno amides by reaction with acid chlorides. The presen
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 (2007/10/03)
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
Seleno-imine: A new class of versatile, modular N,Se ligands for asymmetric palladium-catalyzed allylic alkylation
Braga, Antonio L.,Paix?o, Márcio W.,Marin, Graciane
, p. 1675 - 1678 (2007/10/03)
The palladium-catalyzed asymmetric allylic alkylation of 1,3-diphenyl-2-propenyl acetate with dimethyl malonate in the presence of chiral seleno-imine ligands derived from an inexpensive and easily available chiral pool was investigated. Excellent yield a
Straightforward synthesis of non-natural selenium containing amino acid derivatives and peptides
Braga, Antonio L.,Luedtke, Diogo S.,Paixao, Marcio W.,Alberto, Eduardo E.,Stefani, Helio A.,Juliano, Luiz
, p. 4260 - 4264 (2007/10/03)
A series of non-natural selenium-containing amino acid derivatives and peptides have been synthesized, in a flexible and modular strategy. The peptide coupling reaction between N-protected amino acids and chiral ss-seleno amines afforded the desired products in high yields. Wiley-VCH Verlag GmbH & Co. KGaA, 2005.
