Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Amelia Tito"'
Publikováno v:
Tetrahedron. 66:235-241
Optically pure sulfinylfuranones undergo oxidation at sulfur followed by a totally stereoselective epoxidation at the electron deficient double bond by treatment with MCPBA at room temperature to afford, in good yields, enantiomerically pure 4-ethoxy
Autor:
David Cruz, Francisco Yuste, Jose Luis Garcia Ruano, M. Rosario Martín, Marina Alonso, Alberto Fraile, Amelia Tito, M. Teresa Peromingo
Publikováno v:
Tetrahedron. 64:10546-10551
The reactions of diazomethane, diazoethane, and (trimethylsilyl)diazomethane with (S)-2-p-tolylsulfinylcyclopent-2-en-1-one have been studied. The sulfinyl group increases the reactivity and controls the π-facial and endo/exo selectivities. The π-f
Autor:
Amelia Tito, Manuel Martín-Lomas, Maria Medina, Noureddine Khiar, Donatienne Denni, ‡ and José-Luis Garcia Ruano, Guy Solladie, Françoise Colobert
Publikováno v:
The Journal of Organic Chemistry. 63:8918-8921
A short enantioselective synthesis of the biologically important myo-inositol derivative I and the pyrrolidine derivative II is described. The molecule 3, a diketo disulfoxide readily made from tartaric acid, is the key intermediate. The sulfinyl gro
Publikováno v:
Tetrahedron. 52:2177-2186
Reactions of several β-hydroxyketones with different methylation reagents are reported. The de's are moderated or good (40–75%) and slightly change with the relative steric size of the R groups at the starting hydroxyketone. The syn -diols are pre
Autor:
Javier Adrio, Amelia Tito, Nathalie Huser, Jose L. Garcia-Ruano, M. Carmen Carreño, Guy Solladie
Publikováno v:
Tetrahedron Letters. 35:5297-5300
both enantiomers of 2,5-hexane diol and 2,6-heptane diol have been prepared respectively by stereoselective reduction of optically active diketodisulfoxides and ketosulfoxides.
Publikováno v:
ChemInform. 25
Autor:
Guy Solladie, Amelia Tito, Noureddine Khiar, Maria Angeles Medina, Manuel Martin‐Lomas, Jose‐Luis Garcia Ruano, Françoise Colobert, Donatienne Denni
Publikováno v:
ChemInform. 30
Publikováno v:
ChemInform. 33
The first 1,3-dipolar reaction of azomethine ylides with optically pure vinyl sulfoxide are reported. The presence of the sulfinyl group increase the reactivity of the acrylate moiety as a dipolarophile, and the reactions evolve with complete regio-
Publikováno v:
The Journal of organic chemistry. 74(10)
The addition of diazomethane and diazoethane to enantiopure (S)-(+)-3-[(4-methylphenyl)sulfinyl]-5,6-dihydropyran-2-one (3) afforded the corresponding pyrazolines 4 and 6-exo in good yields and with almost complete pi-facial selectivity. When the rea
Autor:
Marina Alonso, M. Teresa Peromingo, Francisco Yuste, Jose Luis Garcia Ruano, David Cruz, Alberto Fraile, M. Rosario Martín, Amelia Tito
Publikováno v:
ChemInform. 40
The reactions of diazomethane, diazoethane, and (trimethylsilyl)diazomethane with (S)-2-p-tolylsulfinylcyclopent-2-en-1-one have been studied. The sulfinyl group increases the reactivity and controls the π-facial and endo/exo selectivities. The π-f