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Síntese de novos selenofenos indólicos via adição eletrofílica de SeCl2
(Universidade Federal de Santa Maria, 2019-02-01)
This work initially describes a novel and efficient protocol for the synthesis of 3-selenophen-3-yl-1H-indole derivatives via the electrophilic addition of SeCl2 to the conveniently substituted propargyl-indoles. The ...
Isolamento, determinação estrutural e atividades biológicas de metabólitos dos fungos Phellinotus piptadeniae E Pisolithus tinctorius
(Universidade Federal de Santa Maria, 2019-01-29)
Basidiomycete fungi are important living organisms that present several bioactive compounds, which have antimicrobial, antitumor, antioxidant, and anti-inflammatory potential. Several compounds and potentialities of this ...
Síntese, caracterização, estudo fotofísico e interação molecular de novas calcogenoporfirinas derivadas da 5,10,15,20–tetrakis(pentafluorofenil)porfirina
(Universidade Federal de Santa Maria, 2019-02-18)
The present work had as main objective the synthesis of new chalcogenporphyrins derived from
5,10,15,20-Tetrakis(pentafluorophenyl)porphyrin, characterization, study of photophysical
properties and analysis of biomolecular ...
Engenharia de cristais: estudo conformacional, topológico e energético de t-butilpirazóis e bis-t-butilpirazóis
(Universidade Federal de Santa Maria, 2019-02-22)
This work presents a proposed crystallization mechanism and conformational study of regioisomers of 5(3)-aryl-3(5)-carboxyethyl-1-(1,1-dimethylethyl)-1H-pyrazole (aryl, 4-X-C6H4, where X = H, F, Cl and Br) and a series of ...
Síntese, análise estrutural, luminescência e atividade biológica de complexos de metais de transição com ligantes derivados de benzoilidrazina e feniltiossemicarbazida
(Universidade Federal de Santa Maria, 2019-01-30)
This work reports the synthesis and characterization of new complexes with 2,6-diacetylpyridine-bis(benzoylidrazone) (L1) and 2,6-diformylpyridine-bis(4-phenylthiosemicarbazone) (L2) ligands. The complexes [(L1)2Ce]Cl3.14H2O ...
Interação entre líquidos iônicos imidazolíneos e os alginatos de sódio e hidroxâmico
(Universidade Federal de Santa Maria, 2019-01-30)
This work describes the interactions between sodium alginate (ALG) and hydroxamic
alginate (AHX) with the monocationic imidazolium ionic liquids series (CnMIMBr).
From the surface tension, electrical conductivity, ...
Síntese e avaliação biológica de 1,2,3-triazóis-1,4-dissubstituídos derivados de benzocalcogenoanilinas e 2-aril-4-(azidometil)-1,3-calcogenazóis
(Universidade Federal de Santa Maria, 2019-01-31)
In the present work two new series of 1,2,3-triazoles-1,4-disubstituted 20-33 obtained by the reaction of 1,3-dipolar cycloaddition, Click-type, were synthesized between the alkaloids derived from benzocalcogenoanilines ...
Desenvolvimento de método para determinação de resíduos de medicamentos veterinários em salmão por UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2019-02-27)
The aquaculture industry has been growing, developing and highlightning in the last few years. Many
countries and international organizations have invested in developing the activity according to available
resources. ...
Estudo de semi-sintéticos do ácido morônico e estudo de espectroscopia de difusão ordenada em produtos naturais
(Universidade Federal de Santa Maria, 2019-11-01)
Natural products play an important role in the discovery of new drugs, either by
isolating novel structures or obtaining semi-synthetic ones. However, due to the
complex nature, these studies are real challenges and ...
Determinação de resíduos de agrotóxicos em azeite de oliva e azeitonas empregando método QuEChERS e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2019-08-03)
Commonly used in the Mediterranean diet, olive oils and table olives have become more frequent in the everyday meals of the Brazilian consumer. Despite the small consumption per capita, the country is already the second ...