Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Omayra H. Rubio"'
Autor:
Omayra H. Rubio, Angel L. Fuentes de Arriba, Francisca Sanz, Francisco M. Muniz, Joaquín R. Morán
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 6, Pp o1814-o1814 (2012)
In the title compound, C23H28Br2S, the thioxanthene unit is twisted, showing a dihedral angle of 29.3 (5)° between the benzene rings. When projected along [001], the packing shows two types of channels. The crystal studied was a racemic twin.
Externí odkaz:
https://doaj.org/article/30675925230046e2ac75e77e3bcedfa7
Autor:
Victoria Alcázar, Francisca Sanz, Omayra H. Rubio, Luis Simón, Joaquín R. Morán, Ángel L. Fuentes de Arriba, Laura M. Monleón
Publikováno v:
Tetrahedron: Asymmetry. 28:819-823
For the first time, a 1,3-ketoenol system is described as an acid catalyst with hydrolytic activity. The combination of an enol and a pyridine/benzimidazole supported on a benzofuran skeleton allowed the creation of a novel bifunctional organocatalys
Autor:
Luis Simón, Rachid Taouil, Francisco M. Muñiz, Laura M. Monleón, Joaquín R. Morán, Francisca Sanz, Omayra H. Rubio
Publikováno v:
Organic & Biomolecular Chemistry. 15:477-485
A molecular receptor has been synthesized joining an aza-crown ether with a chiral chromane which mimics the oxyanion hole of the enzymes. With this receptor an apolar host-guest complex with zwitterionic alanine has been achieved through the formati
Autor:
Victoria Alcázar Montero, Ángel L. Fuentes de Arriba, Laura M. Monleón, Leire de Juan Fernández, Joaquín R. Morán, Luis Simón Rubio, Omayra H. Rubio
Publikováno v:
European Journal of Organic Chemistry. 2016:1541-1547
The easily accessible benzofuran skeleton has been used as a platform for building two synthetic receptors able to associate with carboxylic acids and dinitrobenzoyl-substituted (DNB) amino acids. The synthesis of the benzofuran framework allows for
Autor:
Ángel L. Fuentes de Arriba, Laura M. Monleón, Omayra H. Rubio, Luis Simón Rubio, Joaquín R. Morán, Francisco Gómez Herrero
Publikováno v:
Organic & Biomolecular Chemistry. 14:3906-3912
The combination of a 1,3-ketoenol system and two pyridine molecules attached as sulfonamide and carboxamide to a benzofuran skeleton allows the preparation of a novel chiral receptor for zwitterionic phenylalanine association. Interestingly, no crown
Autor:
Luis Simón, Francisca Sanz, Ángel L. Fuentes de Arriba, Laura M. Monleón, Victoria Alcázar, Omayra H. Rubio, Joaquín R. Morán
Publikováno v:
Tetrahedron. 71:1297-1303
Several bifunctional organocatalysts based on a carbazole scaffold containing a chiral amine and a synthetic oxyanion-hole have been synthesized and successfully applied to the synthesis of the Hajos–Wiechert and Wieland–Miescher ketones (up to 9
Autor:
Laura M. Monleón, Sara del Mazo, Luis Simón, Alvaro G Temprano, Joaquín R. Morán, Omayra H. Rubio
Publikováno v:
Organicbiomolecular chemistry. 15(21)
A receptor for carboxylic acids which combines an oxyanion-hole structure with electrostatic forces has been prepared. X-ray diffraction studies have been carried out to evaluate the geometry of both the free receptor and its associated species with
Autor:
Joaquín R. Morán, Francisca Sanz, Ángel L. Fuentes de Arriba, Laura M. Monleón, Omayra H. Rubio, Víctor Tena Pérez, Luis Simón
Publikováno v:
Tetrahedron. 70:8614-8618
Borohydride reduction of salicylaldehyde imines yields surprisingly a cyclic boramide. This is a fairly stable compound, and X-ray analysis shows it has a tetrahedral boron atom. Mechanistic studies show a reaction pathway through an oxazaborinane in
Autor:
Luis Simón, Francisca Sanz, Omayra H. Rubio, Víctor Tena Pérez, Ángel L. Fuentes de Arriba, Laura M. Monleón, Joaquín R. Morán
Publikováno v:
European Journal of Organic Chemistry. 2014:3242-3248
Attempts to synthesize 2-hydroxynitrostyrenes by a Knoevenagel condensation of salicylaldehyde and subsequent elimination were unsuccessful because of the formation of a stable imine. This could be easily prevented by using secondary amines to cataly
Autor:
Ángel L. Fuentes de Arriba, Laura M. Monleón, Luis Simón, Francisca Sanz, Joaquín R. Morán, César Raposo, Victoria Alcázar, Omayra H. Rubio
Publikováno v:
Chemical communications (Cambridge, England). 52(85)
Administration of enantiomerically pure β-adrenergic agonists and antagonists increases their activity and reduces side effects. We report here a small-molecule artificial receptor (SMAR) that, by mimicking the β-adrenergic receptor, is able to ena