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Síntese de heteroarilazóis trialometilsubstituídos a partir de 2-acetilfurano e 2-acetiltiofeno
(Universidade Federal de Santa Maria, 2004-04-07)
The synthesis of 1,1,1-trihalo-4-methoxy-4-[2-thienyl]-3-buten-2-ones, 1,1,1-trihalo-4-methoxy-4-[2-furyl]-3-buten-2-ones and the respective trihalomethyl 1,3-butanone derivatives by trihaloacylation of dimethoxy acetals
derived ...
Estudo fitoquímico de três espécies pertencentes à família Rhamnaceae: Discaria americana, Colletia paradoxa e Gouania ulmifolia
(Universidade Federal de Santa Maria, 2005-08-26)
The present work describes the phytochemistry study and antimicrobial activity of the aerial parts and bark root of three species from Rhamnaceae family: Discaria americana Gilles & Hook, Colletia paradoxa Sprengel and ...
Síntese, propriedades e investigação estrutural de 1,3-diariltriazenos e complexos com Ni(II), Pd(II), Pt(II) e Hg(II)
(Universidade Federal de Santa Maria, 2006-08-04)
Although transition metal complexes with nitrogen coordination spheres involving monocatenated 1,3-diarylsubstituted triazenido ligands (ArNNNAr)−, have been investigated in the last decades, the structure of such compounds ...
Síntese de 2-(1h-pirazol-1-il)-5-(1h-pirazol-1-il-1-carbonil) piridinas
(Universidade Federal de Santa Maria, 2008-02-20)
This work describes the synthesis of a new series of 2-[3-alkyl(aryl/heteroaryl)-5-trihalomethyl-5-hydroxy-4,5-dihydro-1H-pyrazol-1-il]-5-[3-alkyl(aryl/heteroaryl)-5-trihalomethyl-5-hydroxy-4,5-dihydro-1H-pyrazol-1-il-1- ...
Reação de alquinos terminais com 1,1,1-trialo-4-alcóxi-3- alquen-2-onas
(Universidade Federal de Santa Maria, 2005-02-21)
In this work a convenient method of synthesis of 9 eninones is presented, through the reaction of different acetylenes (phenylacetylene, 1-heptyne and 1-hexyne) with n-butillithium and subsequently with electrophiles ...
Síntese de 7-trifluormetil-5,6-diidrobenzo[c]acridinas
(Universidade Federal de Santa Maria, 2005-02-28)
This work describes the reactions of 1-methoxy-2-trifluoroacetyl-3,4-dihydro-naphthalene (4) with substituted anilines 5a-j to obtain a series of N-aril-2-trifluoroacetyl-3,4-diidronaphtalenes (6a-j). Intramolecular ...
Síntese de 2-[5-Aril-3-(E-estir-1-il)-4,5-Diidro-1H-pirazol-1-il]-4-Fenil-6-Trifluormetilpirimidinas
(Universidade Federal de Santa Maria, 2005-08-15)
The synthesis of a series of 2-[5-aryl-3-(E-styr-1-yl)-4,5-dihydro-1H-pyrazol-1-yl]-4-phenyl-6-trifluoromethylpyrimidines (where aryl = C6H5, 2-MeC6H4, 2-MeOC6H4, 4-MeOC6H4, 3,4-(MeO)2C6H3, 3,4,5-(MeO)3C6H2, 4-ClC6H4) in ...
Síntese e análise estrutural de novos plímeros de coordenação envolvendo seleninatos de metais alcalinos e alcalinos terrosos
(Universidade Federal de Santa Maria, 2007-12-03)
Seven new compounds involving the phenylseleninato ligand and alkaline and alkaline earth metals were obtained in this work: poly-phenylseleninato lithium(I) (1), catena-polybis(aqua)-phenylseleninato sodium(I) (2), ...
Estudo dos constituintes químicos de óleos voláteis de plantas medicinais do Rio Grande do Sul: isolamento, determinação e modificação estrutural e atividade biológica
(Universidade Federal de Santa Maria, 2004-10-27)
The essential oils of eight species of medicinal plants wild and cultivated in Rio Grande do Sul, pertaining to four botany family Asteraceae, Verbenaceae, Lamiaceae and Rutaceae were investigated as for its chemical ...
Desenvolvimento e avaliação de sistema em fluxo para especiação de mercúrio
(Universidade Federal de Santa Maria, 2007-01-29)
A flow injection (FI) system, which is coupled to an atomic absorption spectrometer, is proposed for organic and inorganic mercury speciation. The FI system consists basically of three three way-solenoid valves, a gas/liquid ...