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Síntese de 2-(1,4,5,6-tetraidropiridin-3-il)-2-oxoacetato de etila 1,6-dissubstituídas via mecanismo ANRORC
(Universidade Federal de Santa Maria, 2013-03-18)
This paper presents a synthetic strategy for the preparation of two series of novel 1,6-disubstituted Ethyl 2-(1,4,5,6-tetrahydropyridin-3-yl)-2-oxoacetate from the reaction of the cyclic enone ethyl 2-(6-ethoxy-5 ...
Interações intermoleculares e topologia molecular no empacotamento cristalino de 3-amino-4-halo-5-metilisoxazóis
(Universidade Federal de Santa Maria, 2013-02-26)
In this work is described the intermolecular interactions and the molecular
topology present in the crystal packing of 3-amine-4-halo-5-methylisoxazoles. First
was described the obtention of the 3-amine-4-halo-5-methylisoxazoles ...
Determinação de disruptores endócrinos em filé de peixe utilizando QuEChERS modificado e GC-(TQ)MS/MS
(Universidade Federal de Santa Maria, 2012-02-27)
Endocrine Disrupter Compounds (EDCs) like pesticides, alkylphenols and hormones
among other classes of compounds are responsible for alterations in the endocrine
system functions. Endocrine disruption occurs when EDCs ...
Determinação de boro em amostras de carbeto de silício utilizando piroidrólise e ICP-OES
(Universidade Federal de Santa Maria, 2012-12-13)
In this work a procedure for boron determination in samples of silicon carbide by pyrohydrolysis and detection by inductively coupled plasma optical emission spectrometry was developed. The silicon carbide samples were ...
Síntese de Pirimidinas derivadas de 7,7,7-trialo-4-metoxi-6-oxo-4- heptenoatos de metila e bi-heterociclos trifluormetilados
(Universidade Federal de Santa Maria, 2012-02-27)
An efficient method to obtain pyrimidinones and pyrimidines trialomethylated from the cyclocondensation reaction of compounds of methyl 7,7,7-trihalo-4-methoxy-6-oxoheptenoate
with urea and differents amidines providing ...
Determinação de halogênios por cromatografia de íons e ICP-MS em sulfato de bário após decomposição por piroidrólise
(Universidade Federal de Santa Maria, 2013-02-28)
In this work pyrohydrolysis is proposed as pretreatment of barium sulfate and subsequent determination of F, Cl, Br and I by ion chromatography (IC) and inductively coupled plasma mass spectrometry (ICP-MS). After the ...
Síntese de 4-trifluormetil-5-(propan-1-ol-3-il)-1H-piridin-2-iminas N-substituídas
(Universidade Federal de Santa Maria, 2013-03-08)
This work presents a simple and accessible synthetic route for the
preparation of a series, of nineteen new N-substituted 4-trifluormethyl-5-
(propan-1-ol-3-yl)-pyridin-2-(1H)-imines, obtained from the reaction between ...
Síntese de 3-alcoxiacrilamidas a partir de tricloroacetil enol éteres
(Universidade Federal de Santa Maria, 2012-02-24)
This work reports a effective method for the preparation of a series of the new
3-alkoxy acrylamides of general formula R3HNC(O)CR1=CR2(OR), where R/ R1/ R2 =
Et/H/H, Me/H/Me, -(CH2)2-/H, -(CH2)3-/H; R3 = Allyl, n-Pr, ...
Síntese de 1,2,4-oxadiazóis derivados de 4-tiazolidinonas e arilamidoximas
(Universidade Federal de Santa Maria, 2012-07-20)
The current work reports the incorporation of 4-thiazolidinones to oxadiazolic
ring by a simple and effective methodology.
Five species of thiazolidinones were synthesized by three component
condensation reaction of ...
Síntese e caracterização de um ligante bisfenilfosfinato rígido e novos compostos poliméricos
(Universidade Federal de Santa Maria, 2011-03-21)
In this work, the ammonium salt of acid and a new polymeric compound of Cadmium, ligand 1,4-phenylene bis phenylphosphinic acid already reported by Herring at 1967 (Herring, L., D.; United States Patent, 3, 341-576, 1967) ...