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Mostrando ítems 11-20 de 29
Estudo de metabólitos secundários de Ruta graveolens como inibidores da fotossíntese
(Universidade Federal de São Carlos, 2012-12-09)
In this work were isolated eighteen secondary metabolites from Ruta graveolens (Rutaceae), eleven alkaloids (five akridonic, five quinolinics and one quinolonic) and seven furanocoumarins. Thirteen compounds had their ...
Estudo químico em patógenos e vetores de doenças de citros: Xylella fastidiosa e Diaphorina citri
(Universidade Federal de São Carlos, 2011-07-04)
CHEMICAL STUDY OF PATHOGENS AND VECTORS DISEASE OF CITRUS: Xylella fastidiosa & Diaphorina citri. Historically the national citriculture suffered great changes because of phytosanitary problems, and nowadays among the main ...
Avaliação do potencial biotecnológico de microorganismos associados ao inseto-praga diabrotica speciosa na produção de polímeros biobaseados e biodegradáveis
(Universidade Federal de São Carlos, 2016-06-24)
Technological development and market pressure turned polymers into widely used
structural materials for several different applications, being manufactured by a wide
range of monomers. However, traditional polymers usually ...
Tris(trimethylsilyl)silane and visible-light irradiation : a new metal- and additive-free photochemical process for the synthesis of indoles and oxindoles
(Universidade Federal de São Carlos, 2016-07-29)
A combined tris(trimethylsilyl)silane and visible-light-promoted intramolecular reductive cyclization protocol for the synthesis of indoles and oxindoles has been developed (Scheme 1).1 This straightforward and efficient ...
Metátese de fechamento de anel: espiro-anelação estereosseletiva / Reações multicomponentes de Diels-Alder na síntese de compostos tricíclicos
(Universidade Federal de São Carlos, 2011-02-22)
In this work, a study of different synthetic ways was made in order to obtain spiro compounds starting from R-(-)-carvone, getting to the formation of cycloheptenone as an intermediate, which undergoes two consecutives ...
Análise dos constituintes fixos e voláteis de fungos endofíticos dos gêneros Penicillium e Xylaria e de suas plantas hospedeiras
(Universidade Federal de São Carlos, 2010-10-08)
Was conducted the study of chemical constituents volatiles and fixed of endophytes fungi. For this, we used the Penicillium griseoroseum, Penicillium brasilianum, Xylaria (NICL3) and different species of the genus Trichoderma, ...
Estratégias de desreplicação aplicadas ao estudo da planta Alternanthera brasiliana e dos fungos endofíticos associados
(Universidade Federal de São Carlos, 2011-02-24)
Alternanthera brasiliana is widely used by Brazilian people as a folk medicine for the treatment of numerous diseases. However, little is known about its chemical composition and the microorganisms that live in association ...
Cromatografia quiral em escala preparativa: estudo de casos e aplicação
(Universidade Federal de São Carlos, 2012-05-25)
Different types of preparative chromatography techniques were applied to the enantiomeric purification of a series of chiral drugs. The efficiency of multicolumn chromatography with variable zones (VARICOL®) process and ...
Diferenciação e caracterização química de espécies de Phyllanthus utilizando técnicas hifenadas
(Universidade Federal de São Carlos, 2016-01-15)
Several species of Phyllanthus genus are widely used in popular
medicine, even though very few phytochemical reports on species such as: P.
caroliniensis, P. stipulatus and P. tenellus are found in the literature. ...
Precessão Livre de Onda Contínua (CWFP) como ferramenta para supressão do sinal de solvente em RMN de alta resolução
(Universidade Federal de São Carlos, 2011-08-01)
The application of Continuous Wave Free Precession (CWFP) method for solvent suppression in high resolution NMR spectroscopy is reported. The applied methodology was based in the use of conventional pulse sequence that use ...