Nitroderivatives
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Espectroscopia vibracional, Raman ressonante e eletrônica de nitroderivados em sistemas conjugados / Vibrational, resonance Raman and electronic spectroscopies of nitroderivatives in conjugated systems
No presente trabalho foram investigados vários sistemas moleculares contemplando um ou mais grupos NO2 com características fortemente elétron atraentes, e por outro lado um grupo fortemente elétron doador (NH2, OH ou N3H) conectados através de um anel benzênico ou piridínico. A caracterização das propriedades de transferência de carga intramolecula
Publicado em: 2005
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2. Síntese e caracterização estrutural de N,N`-Diaribenzomidinas com atividade Leishmanicida
The synthesis of fourteen amidine derivatives of N,N-diarylbenzamidine class in the neutral and saline forms were realized by two methodologies. Basically, in both synthetical methods the same starting reagents were utilized, but involving a solid reaction and reflux conditions, respectively. The structural characterization was realized by spectroscopic tech
Publicado em: 2004
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3. Redução eletroquímica de cinamatos de metila orto-substituídos / Electrochemical reduction of ortho-substituted methyl cinnamates
The synthesis and electrochemical reduction in DMF of some ring substituted cinnamic esters are described. The main objective if this work is to verify the influence of the substituents on the electrohydrodimerization (EHD). The substrates studied were the methyl esters of o-methyl- (1), o-chloro- (2), o-nitro- (3), m,p-dichloro- (4), m-chloro- (5), p-chloro
Publicado em: 2004
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4. Comportamento térmico do 8-quinolinol e seus nitro-derivados
The compounds 5-nitro-8-quinolinol and 5,7-dinitro-8-quinolinol were obtained by nitration of the chelant 8-quinolinol. The compounds were characterized through EA, MNR, XRD, IR, TG, DTA and DSC. It was verified through thermal analysis that the compounds show consecutive processes of sublimation, fusion and vaporization. During the vaporization process, par
Química Nova. Publicado em: 2001-10
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5. Avaliação da contaminação humana por hidrocarbonetos policíclicos aromáticos (HPAs) e seus derivados nitrados (NHPAs): uma revisão metodológica
Polycyclic aromatic hydrocabons (PAHs) and their nitroderivatives (NPAHs) are ubiquitous in the environment and they are produced in several industrial and combustion processes. Some of these compounds are potent carcinogens/mutagens and their determination in biological samples is an important step for exposure control. A review of the analytical methodolog
Química Nova. Publicado em: 2000-12