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Síntese de triazolopirimidinas 7-triclorometil e triazolopirimidinonas substituídas a partir de reações entre 4-alcóxi-1,1,1-tricloro-3-alquen-2-onas e 3-amino-1H-1,2,4-triazóis
(Universidade Federal de Santa Maria, 2013-08-02)
A synthetic strategy was developed for obtaining a series of new 7-
trichloromethyl-[1,2,4]-triazolo-[1,5-a]pyrimidines substituted from cyclocondensation
reaction between 4-alkoxy-1,1,1-trichloro-3-alken-2-ones (enones ...
Implementação de uma estrutura de controle indireto da concentração de etanol em uma coluna de destilação híbrida
(Universidade Federal de Santa Maria, 2013-01-31)
The unit operation of distillation demands the largest amount of energy in the ethanol
separation. It is of utmost interest to minimize the energy expended in the process,
playing the control an important role on this ...
Formação de agregados de líquidos iônicos dicatiônicos derivados do imidazolíneo em água
(Universidade Federal de Santa Maria, 2013-05-16)
This paper presents the study of influence of molecular structure of ionic liquid-type Gemini imidazolium ìn the formation of aggregates in aqueous solution. The aggregation behavior was investigated through differential ...
Aplicação de polímeros na construção de nanomateriais híbridos auto-organizados
(Universidade Federal de Santa Maria, 2013-02-22)
In this work the single-step/single-phase synthesis of hybrid organic-inorganic core-shell gold nanoparticles (AuNPs), facilitated by amino-functionalized amphiphilic block copolymers that simultaneously play the roles of ...
Síntese e caracterização estrutural de clusters derivados de fenilcalcogenolato de cobre(I)
(Universidade Federal de Santa Maria, 2013-08-09)
In this work the synthesis and structural analysis of new copper(I) phenylchalcogenolate clusters will be presented. The reaction between sodium phenylchalcogenolate and copper(I) chloride generates a basic building block ...
Estudo de método para determinação de resíduos de agrotóxicos em uva por GC-MS
(Universidade Federal de Santa Maria, 2013-07-29)
The regulatory agencies are becoming increasingly stringent as regards the quality of the food. Thus, the development of analytical methods that help monitoring of pesticide residues, and it is essential in routine ...
[2] [N,N,N ,N -tetraalquilsuccinamida] rotaxa [1,7,14,20-tetraaza-2,6,15,19-tetraoxo-3,5,9,12,16,18,22,25-tetrabenzocicloexacosano]: síntese e estrutura
(Universidade Federal de Santa Maria, 2013-07-26)
This work presents the synthesis of five new planned [2]rotaxanes whith
thread derivates succinamide [R1R2NC(O)CH2CH2C(O)NR1R2, where R1 = R2 =
Pr, i-Pr, Bu, i-Bu e R1 = CH2Cy e R2 = CH2Ph]. The compounds were obtained
by ...
Comportamento químico de azóis trialoacetil/trifluormetil substituídos em reações de alilação: síntese de álcoois trialometil heteroaril homoalílicos
(Universidade Federal de Santa Maria, 2013-03-01)
The present work reports the synthesis of homoallylic alcohols derived from trihaloacetyl/trifluormethyl substituted azoles employing a simple methodology, with excellent cost benefit and able to furnish the desired products ...
Agrotóxicos em milho: otimização e validação de método multirresíduo empregando GC-MS/MS
(Universidade Federal de Santa Maria, 2013-02-28)
Due to the complexity of its matrix, more efficient methods have been studied
for the determination of pesticide residues in maize. The use of QuEChERS method
coupled to low temperature clean up technique has showed ...
Síntese, análise cristalográfica e atividade biológica de complexos com ligantes triazenidos com fragmentos orto-halofenila e para-sulfonamidafenila
(Universidade Federal de Santa Maria, 2013-03-08)
This study shows the triazenes ligands and complexes Pd(II), K+ and Au(I) obtained from reactions of the ligands with fragments para-sulfonamidephenyl, comprising triazene ligand 1,3-bis (4 - sulfonamidephenyl) (1) and the ...