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Reações de 3-trialoacetil-4,5-diidrofuranos e 5-trialoacetil-3,4-diidro-2H-piranos com aminas e álcoois
(Universidade Federal de Santa Maria, 2003-03-21)
This work presents the synthesis of α-alkylaminomethylene-γ-
lactones 8 (one pot reaction) and α-alkylaminomethylene-δ-lactones 9 (two steps
reaction), from the reaction of 3-trichloroacetyl-4,5-dihydrofuran (3) and ...
Aplicação de carbocátions calcogênio estabilizados na síntese de 1,2,3,4-tetraidroisoquinolinas funcionalizadas
(Universidade Federal de Santa Maria, 2003-04-15)
Unable to insert abstract.
Síntese de sulfetos e dissulfetos aziridínicos quirais e aplicação em catálise assimétrica
(Universidade Federal de Santa Maria, 2003-03-12)
Unable to insert abstract.
Síntese, estrutura cristalina e molecular de complexos nos sistemas 1,3-bis(p-azofenil)triazenido e 3-(2-flúorofenil)-1-(4-nitrofenil)triazenido/Pd(II)
(Universidade Federal de Santa Maria, 2002-08-05)
The reaction between palladium chloride and 1,3-bis(pazophenyl)triazenido/pyridine yields the complex trans-bis[1,3-bis(pazophenyl)triazenido]-bis(pyridine)palladium(II), complex (a), which
crystallizes in the triclinic ...
Ferro-processos aplicados à degradação de efluente da produção de trifluralina
(Universidade Federal de Santa Maria, 2002-08-02)
In this work, comparative studies about the performance of iron-processes were
carried out in the pre-treatment of effluent streams samples (under high
concentration) from the trifluralin herbicide production (amination ...
Preparação de 1,1,1-trialo-4-metil[fenil]seleno-3-alquen-2-onas como precursores para síntese de 3-trialometil-[3-carboxi] isoselenazóis
(Universidade Federal de Santa Maria, 2002-04-19)
A convenient synthesis of 16 1,1,1-trihalo-4-methyl[phenyl]seleno-3-alken-2-ones [CX3C(O)CH=CR1SeR, where X = Cl, F; R = Me, Ph e R1 = H, Me, Et, n-Pr, iso-Pr, iso-Bu, Ph, 4-F-C6H4 e 4-Cl-C6H4], from the reaction of the ...
Síntese e análise estrutural de compostos supramoleculares de Cd(II) com o ligante 4,6-dimetilpirimidina-2-tiona
(Universidade Federal de Santa Maria, 2004-03)
This dissertation describes the synthesis and analysis of the supramolecular
compounds α- and β-[Cd(DMPYMT-S)2]n, DMPYMT-S = 4,6-dimethylpyrimidine-2-
thione.
The reaction product of cadmium acetate dihydrate with ...
Estudo da interação entre silício e alumínio extraídos do vidro na presença de soluções para nutrição parenteral
(Universidade Federal de Santa Maria, 2003-08)
Silicon is a non-metal essential to the living organisms due to its role
in the tissues and bones. The most important biological forms of silicon are
the amorphous silica and the monomeric silicic acid. Only the ...
Síntese de Tio- e Selenoacrilonitrilas
(Universidade Federal de Santa Maria, 2002-08-26)
In this work three new methodologies were developed, two for the addition of
HX to chalcogenoacetylenes 3 (Methods B and C) and the third on the synthesis of
chalcogenacrylonitriles 2 (Method A). [...]
Combustão iniciada por microondas e determinação em linha de cádmio e chumbo em plantas por espectrometria de absorção atômica com tubo aquecido na chama
(Universidade Federal de Santa Maria, 2007-02-07)
In this work a new procedure is proposed by solid sampling flame furnace atomic absorption spectrometry after microwave induced combustion (MIC-FFAAS). The procedure was applied for the determination of cadmium and lead ...