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Enantioselective Addition of Diethylzinc to Benzaldehyde Catalyzed by an Organometallic Ti(IV) Compound and a Xylose Derivative
(SOC BRASILEIRA QUIMICA, 2009)
A derivative of D-xylose, 1,2-O-isopropylidene-alpha-D-xylofuranose (1), with Ti((OPr)-Pr-i)(4) was used as a chiral catalyst in the asymmetric alkylation of benzaldehyde with diethylzinc (Et2Zn) for the high-yield production ...
Síntese, caracterização e estudo catalítico de complexos miméticos das enzimas Nitrito Redutase e Anidrase Carbônica
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Química - PPGQCâmpus São Carlos, 2022-03-30)
Metalloenzymes are efficient biological catalysts that inspire the creation of coordination compounds that mimic their active site. In this work, the synthesized complexes were inspired by two enzymes: Nitrite Reductase ...
Synthesis and characterization of ruthenium (II) carbonyl complexes containing naphthyridine and acetylacetonate ligands and their catalytic activity in the hydrogen transfer reaction
(Elsevier, 2013)
A series of novel complexes of the Ru(L)2(CO)2 L = 2-(3′ methoxyphenyl)-1,8-naphthyridine (complex 1),
and type Ru(acac)2(L)(CO) with L = 2-(3′ methoxyphenyl)-1,8-naphthyridine (complex 2), 2-(2′-
bromophenyl)-1,8-naphthyridine ...
Lignin from sugar cane bagasse: Extraction, fabrication of nanostructured films, and application
(Amer Chemical Soc, 2007-06-05)
Four lignin samples were extracted from sugar cane bagasse using four different alcohols (methanol, ethanol, n-propanol, and 1-butanol) via the organosolv-CO2 supercritical pulping process. Langmuir films were characterized ...
Atypical beta-adrenoceptor subtypes mediate relaxations of rabbit corpus cavernosum
(Amer Soc Pharmacology Experimental Therapeutics, 2004-05-01)
This study was performed to characterize the beta-adrenoceptor population in rabbit isolated corpus cavernosum (RbCC) by using nonselective and selective beta-adrenoceptor agonists and antagonists in functional assays. ...
Atypical beta-adrenoceptor subtypes mediate relaxations of rabbit corpus cavernosum
(Amer Soc Pharmacology Experimental Therapeutics, 2004-05-01)
This study was performed to characterize the beta-adrenoceptor population in rabbit isolated corpus cavernosum (RbCC) by using nonselective and selective beta-adrenoceptor agonists and antagonists in functional assays. ...
Plasmodium falciparum biosynthesizes sulfoglycosphingolipids
(Elsevier Science, 2007-07)
Sulfated glycosphingolipids are present on the surface of a variety of cells. They are active participants in adhesion processes in many systems and appear to be involved in the regulation of cell proliferation, differentiation ...
Cloning and functional characterization of two key enzymes of glycosphingolipid biosynthesis in the amphibian Xenopus laevis
(Wiley-liss, Div John Wiley & Sons Inc, 2008-01)
Gangliosides are a subfamily of complex glycosphingolipids (GSLs) with important roles in many biological processes. In this study, we report the cDNA cloning, functional characterization, and the spatial and temporal ...
Uso da técnica de espectrometria de massas com ionização por eletrospray (ESI-MS) para o estudo do mecanismo de reações orgânicas e avaliação do perfil de fragmentação de bis-hidroxiiminas aromáticas
(Universidade Federal de Minas GeraisUFMG, 2011-03-04)
Electrospray Ionization Mass Spectrometry (ESI-MS) was applied to investigate the mechanism of two organic reactions: Zincke and Aza Diels Alder. A systematic study regarding the fragmentation of typical Salophen ligands ...