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Síntese de 2-[3h-pirazol-2-il]trifluormetilpirimidinas Alquil, aril e heteroaril substituidas
(Universidade Federal de Santa Maria, 2004-07-14)
This work describes a general methodology for the synthesis of a novel series of 4-alkyl, 4-aryl, heteroaryl-2-[5-methyl-4-(2-hidroxyethyl)-3-oxo-1,2-dihydro-3H-pyrazol-2-yl]-6(4)-trifluoromethylpyrimidines. The precursors ...
Reações regioespecíficas de β-alcoxivinil trialometil cetonas com heteroaroilhidrazinas
(Universidade Federal de Santa Maria, 2004-12-20)
This work describe the regiospecific synthesis of three novel series of 1-(2-thenoyl)-, 1-(2-furoyl)- and 1-(isonicotinoyl)-3-alkyl(aryl)[heteroaryl]-5-hydroxy-5-trihalomethyl-4,5-dihydro-1H-pyrazoles, in good yields (50 ...
3-alcoxi-4-hidroxi pirrolidin-2-onas, 2-metilsulfanil pirimidina, enoilcarbamatos e 3-dialcoxi fosforiloxi trialometilados: síntese e potencial inibitório sobre a atividade da enzima acetilcolinesterase
(Universidade Federal de Santa Maria, 2006-10-20)
This work presents a study of the several organic compounds such as trihalomethylated enaminones, γ-amino alcohols, oxazinones, oxazines, dihydrofuranones, pyrrolidin-2-ones, 2-methylsulfanyl pyrimidine, enoylcarbamates ...
Síntese de derivados vinílicos e enínicos de fósforo e aplicação sintética de dissulfetos imidazolidínicos quirais em reações assimétricas
(Universidade Federal de Santa Maria, 2002-07-26)
In this work, we developed a method to prepare β-alkynylvinylphosphonates 3 via a
palladium-catalyzed cross-coupling reaction of β-n-butyltellurovinylphosphonates 2 with
terminal alkynes. The compounds 2 were prepared ...
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.
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 determinação estrutural de compostos Halo-organiltelúrio-mercúrio(II)
(Universidade Federal de Santa Maria, 2002-12-16)
Não foi possível inserir o abstract.
Síntese de 3-carboxietil-6-trialometil-[1,3]-oxazin-2-onas
(Universidade Federal de Santa Maria, 2003-03)
This work presents a three steps synthetic route to obtain 1,3-
oxazin-2-ones, from the β-alkoxyvinyl trihalomethyl ketones of general
formula X3CC(O)CH=C(R)OR¹, where R = H, CH3, Ph, p-Me-Ph; R¹ =
Me, Et.
β-alkoxyvinyl ...