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Síntese de 1,7-fenantrolinas e 7-aminoquinolinas trifluormetil substituídas
(Universidade Federal de Santa Maria, 2010-02-26)
This work, at first, describes the synthesis and characterization of new series of (Z,Z)-N,N -bis(oxotrifluoroalkenyl)-1,3-phenylenediamines by the addition/elimination reaction of β-alkoxyvinyl trifluoromethyl ketones ...
Síntese e caracterização estrutural de novos compostos organocalcogenoxanos contendo ítrio(III)
(Universidade Federal de Santa Maria, 2017-07-26)
This work describes the synthesis and structural characterization of new organochalcogenoxanes polymer and clusters compounds containing yttrium(III) ion. The synthetized compounds have structure of unidimensional coordination ...
Síntese e caracterização de 1,3,4-oxadiazolil-1,2,4-oxadiazóis derivados de ácidos acrílicos 3-substituídos
(Universidade Federal de Santa Maria, 2017-02-24)
A series of 1,3,4-oxadiazolyl-1,2,4-oxadiazoles was synthesized through a one-pot condensation-cyclization reaction between 3-substituted acrylic acids and 5-aryl-1,2,4-oxadiazolyl-1,2,4-oxadiazoles, and were characterized ...
Autoassociação de amidas aromáticas: abordagem supramolecular e mecanismos de cristalização
(Universidade Federal de Santa Maria, 2017-07-21)
This work presents the use of N-phenylamides as models for the study of self-association and intermolecular interactions. Obtaining the crystal of N-phenyltrifluoroacetamide allowed its diffraction and inclusion in the ...
Síntese e estereoquímica de isoxazóis espiro-tetracíclicos trifluormetil substituídos
(Universidade Federal de Santa Maria, 2017-02-23)
The present dissertation initially describes methodologies for the synthesis of five 3-(trifluoromethyl)-3,3a-dihydrospiro[chromeno[4,3-c]isoxazole-4,1'-cycloalkan]-3-ols (7) in 65 – 84 % yields, where the spirocarbocyclic ...
Síntese de 4-(1-fenil-5-trifluormetil-1h-pirazol-4-il)-1h-1,2,3-triazóis promovida por dialquil biaril fosfinas e catálise metálica
(Universidade Federal de Santa Maria, 2017-08-11)
The present dissertation describes the development of a three-step, one-pot methodology, involving the sequential reactions of Sonogashira cross-coupling, deprotection of terminal alkyne (removal of trimethylsilane group), ...
Caracterização e avaliação da atividade fotodinâmica de tetra-meso-[(piridil)porfirina]platina(II) frente à microorganismos
(Universidade Federal de Santa Maria, 2017-06-30)
This work deals with the synthesis of Tetra-meso-[(3-pyridyl)-chloro-2,2'-bipyridyl-platinum(II)]porphyrin (3-H2TPtPyP) and Tetra-meso-[(4-pyridyl)-chloro-2,2'-bipyridyl-platinum(II)]porphyrin (4-H2TPtPyP), starting from ...
Determinação de elementos do grupo da platina em carvão com alto teor de cinzas por ICP-MS
(Universidade Federal de Santa Maria, 2017-06-03)
In this work a method for the digestion of high ash content coal (>30%) using a high
pressure asher (HPA) system for further determination of platinum group elements
(PGEs) by inductively coupled plasma mass spectrometry ...
Efeitos energéticos e topológicos no design de cocristais de compostos aromáticos e em 1,5-diaril-1h-pirazol-3-carboxilatos de etila
(Universidade Federal de Santa Maria, 2017-07-20)
This work presents the study of the supramolecular environment in multicomponent crystals. Multicomponent
crystals were defined by J. D. Dunitz as a crystal containing two or more components together, so that this
concept ...
Determinação multirresíduo de agrotóxicos em abelha e pólen apícola empregando método QuEChERS modificado e LC-MS/MS
(Universidade Federal de Santa Maria, 2017-07-21)
The use of pesticides contributes to increase the production, but there is a growing concern with its adverse effects in the environment. The decline of bee population and the contamination of apicultural products by ...