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Síntese regiosseletiva de 4-trifluormetil-2-(metiltio)-3,4-diidropirimidin-4-óis 3,6-dissubstituídos com efeito inibitório enzimático
(Universidade Federal de Santa Maria, 2012-02-27)
This work reports a simple and versatile new strategy for the regiosselective synthesis of N3-substituted 6-alkyl(aryl or heteroaryl)-4-trifluoromethyl-2-(methylthio)-3,4-dihydropyrimidin-4-ols, which enabled to establish ...
Micotoxinas em matrizes de milho e trigo: validação de método analítico por ULPC-MS/MS e monitoramento em diferentes pontos da cadeia produtiva e comercial
(Universidade Federal de Santa Maria, 2014-02-24)
This study aims to validate an analytical multi-mycotoxin method using UPLC-MS/MS for 12 mycotoxins determination in wheat and maize matrices. The parameters evaluated for the validation were: calibration curve and linearity, ...
(Benzo[d]azolil)guanidinas: reações de ciclocondensação com trifluoracetil enol éteres na síntese de N-(pirimidinil)-1H-(benzo[d]azolil)aminas e N-derivados
(Universidade Federal de Santa Maria, 2014-08-05)
The present research describes a simple and efficient procedure to synthesize a novel series of twenty N-(pyrimidinyl)-1H-(benzo[d]azolyl)amines, from the cyclocondensation reaction of (benzo[d]azolyl)guanidines with ...
Síntese de 1,3-imidazois-2,4,5-trissubstituídos derivados de calcogenofenos
(Universidade Federal de Santa Maria, 2014-08-24)
In the following work, a series of new 2,4,5 trisubstituted 1,3-imidazoles 11 and 12 were synthesized from 1-aryl-2-(chalcogenophen-2-yl)-1,2-diketones targeting the union of two classes of interesting heterocycles the ...
Síntese de 1,1,1-trifluoro-4-metoxi-3-alquen-2-onas funcionalizadas e 1,2-azóis derivados
(Universidade Federal de Santa Maria, 2014-03-03)
This work describes the application of the method of trifluoroacetic anhydride acetal
acylation to four new functionalized ketones: 6-methyl-5-hepten-2-one, 4-phenyl-4-
oxobutanoic acid (3-benzoylpropionic acid), ...
Síntese e Caracterização de Novos Compostos Derivados de Bis(4-Aminobenzenoselenolato) de Mercúrio(II) e Bis(4-N,N-Dimetil-aminobenzenoselenolato) de Mercúrio(II)
(Universidade Federal de Santa Maria, 2014-07-18)
This work presents the synthesis and structural analysis of the first compounds obtained through the use of the building blocks Mercury(II) bis(4-Aminobenzeneselenolate) Hg(SeC6H4NH2-4)2 and Mercury(II) bis(4-N,N-Dim ...
Aroilbis(N,N-dietiltioureatos) de cádmio (II) e chumbo (II): síntese e caracterização
(Universidade Federal de Santa Maria, 2014-07-18)
This work introduces the synthesis of two novel ligands belonging to the aroylbis(thiourea) class to study the spacer group influence in the complexes structure. Five membered rings were utilized as spacer groups such as ...
Síntese de novos azóis derivados da 1,1- difenilacetona
(Universidade Federal de Santa Maria, 2014-08-07)
This work describes an efficient method to obtaining new heterocycles from the reaction of acetalization of the ketonic carbonyl, followed by acylation of the enolether, generated in situ from the acetal derivative of ...
Desenvolvimento de sistema em fluxo empregando ultrassom para remoção de enxofre de óleo diesel
(Universidade Federal de Santa Maria, 2011-02-18)
In this work, the development of a continuous flow process for sulfur removal
from diesel oil is proposed. The process is based on the application of ultrasonic
energy for increasing the oxidation reaction rate of sulfur ...
Remoção de hidrocarbonetos policíclicos aromáticos por substratos sólidos estudos com amberlite XAD-2, polietileno, poliuretano, sílica e fibra de quartzo
(Universidade Federal de Santa Maria, 2013-09-19)
Polycyclic aromatic hydrocarbons (PAHs) are a class of compounds characterized by having two or more condensed aromatic rings. These substances, as well as their nitrated and oxygenated derivatives, can be found widely ...