Browsing by Author "Varela, Oscar"

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    • Bromination of sugar enones and enonolactones 
      Di Nardo, Christían; Varela, Oscar; de Lederkremer, Rosa M.; Baggio, Ricardo; Vega, Daniel R.; Garland, María Teresa (1995)
      Bromination of 2,4,6-tri-O-benzoyl-3-deoxy-d-erytro-hex-2-enono-1,5-lactone (1) took place diastereoselectively to afford a single product: 2,4,6-tri-O-benzoyl-2,3-dibromo-3-deoxy-d-altrono-1,5-lactone (2). The configuration ...
    • Conformation of 4-thio-L-lyxono-1,4-lactone in solution and in the crystalline state 
      Varela, Oscar; Zunszain, Patricia A.; Cicero, Daniel O.; Baggio, Ricardo; Vega, Daniel R.; Garland, María Teresa (Elsevier Ltd, 1996)
      The conformation in 2H2O of 4-thio-L-lyxono-1,4-lactone (1) was studied by nuclear magnetic resonance spectroscopy, by means of homonuclear (J(1(H),1(H))) and heteronuclear (J(1(H),13(C))) coupling constants. The couplings ...
    • Heterocyclization of 3-deoxy-D-erythro-hexos-2-ulose-1,2-bis(thiosemicarbazone). Crystal structure of the ... 
      Martins Alho, Miriam A.; Baggio, Ricardo; Garland, María Teresa; D'Accorso, Norma B.; Varela, Oscar (2002)
      Both thiosemicarbazone groups of the derivative 1 of 3-deoxy-D-erythro-hexos-2-ulose underwent, on acetylation, a heterocyclization process to give (5R,5′R)-2,2′-diacetamido-4,4′-di-N-acetyl-5′-(1- deoxy-2,3,4-tri-O-acet ...