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Results: 1-24 |
Results: 24
The Schwarzschild interior metric: a new look
Authors: Som, MM Martins, MAP Moregula, AA
Citation: Mm. Som et al., The Schwarzschild interior metric: a new look, PHYS LETT A, 287(1-2), 2001, pp. 50-52
Molecular structure of heterocycles: 6. Solvent effects on the O-17 NMR chemical shifts of 5-trichloromethylisoxazoles
Authors: Martins, MAP Freitag, RA Zimmermanna, NEK Sinhorin, AP Cunico, W Bastos, GP Zanatta, N Bonacorso, HG
Citation: Map. Martins et al., Molecular structure of heterocycles: 6. Solvent effects on the O-17 NMR chemical shifts of 5-trichloromethylisoxazoles, J BRAZ CHEM, 12(6), 2001, pp. 804-808
A convenient synthesis of 4-trichloromethyl-pyrimidin-2-ylamine derivatives
Authors: Zanatta, N Pacholski, ID Faoro, D Bonacorso, HG Martins, MAP
Citation: N. Zanatta et al., A convenient synthesis of 4-trichloromethyl-pyrimidin-2-ylamine derivatives, SYN COMMUN, 31(18), 2001, pp. 2855-2863
A convenient synthesis of 5-trichloromethyl-5-hydroxy-3-heteroalkyl-4,5-dihydroisoxazoles
Authors: Martins, MAP Sinhorin, AP Zimmermann, NEK Zanatta, N Bonacorso, HG Bastos, GP
Citation: Map. Martins et al., A convenient synthesis of 5-trichloromethyl-5-hydroxy-3-heteroalkyl-4,5-dihydroisoxazoles, SYNTHESIS-S, (13), 2001, pp. 1959-1964
Regiospecific cyclization of beta-methoxyvinyl trifluoromethyl ketones with aminoguanidine: A convenient method to obtain trifluoromethylated 2-[1H-pyrazol-1-yl]pyrimidines
Authors: Bonacorso, HG Wentz, AP Zanatta, N Martins, MAP
Citation: Hg. Bonacorso et al., Regiospecific cyclization of beta-methoxyvinyl trifluoromethyl ketones with aminoguanidine: A convenient method to obtain trifluoromethylated 2-[1H-pyrazol-1-yl]pyrimidines, SYNTHESIS-S, (10), 2001, pp. 1505-1508
Molecular structure of heterocycles. V. solvent effects on the O-17 NMR chemical shifts of 5-trichloromethyl-5-hydroxy-4,5-dihydroisoxazoles
Authors: Martins, MAP Freitag, RA Zimmermann, NEK Sinhorin, AP Cunico, W Bastos, GP Zanatta, N Bonacorso, HG
Citation: Map. Martins et al., Molecular structure of heterocycles. V. solvent effects on the O-17 NMR chemical shifts of 5-trichloromethyl-5-hydroxy-4,5-dihydroisoxazoles, SPECT LETT, 34(3), 2001, pp. 375-385
Synthesis of novel trifluoromethylated beta-acetal-diols and their application to the synthesis of 3-ethoxy-5-hydroxy-5-trifluoromethyl-pyrrolidin-2-one
Authors: Zanatta, N da Rosa, LS Loro, E Bonacorso, HG Martins, MAP
Citation: N. Zanatta et al., Synthesis of novel trifluoromethylated beta-acetal-diols and their application to the synthesis of 3-ethoxy-5-hydroxy-5-trifluoromethyl-pyrrolidin-2-one, J FLUORINE, 107(1), 2001, pp. 149-154
A convenient one-pot synthesis of 5-carboxyisoxazoles: trichloromethyl group as a carboxyl group precursor
Authors: Martins, MAP Flores, AFC Bastos, GP Sinhorin, A Bonacorso, HG Zanatta, N
Citation: Map. Martins et al., A convenient one-pot synthesis of 5-carboxyisoxazoles: trichloromethyl group as a carboxyl group precursor, TETRAHEDR L, 41(3), 2000, pp. 293-297
A convenient method to obtain 4,5-dihydro-1H-1-methylpyrazoles by a ring transformation reaction.
Authors: Bonacorso, HG Wastowski, AD Zanatta, N Martins, MAP
Citation: Hg. Bonacorso et al., A convenient method to obtain 4,5-dihydro-1H-1-methylpyrazoles by a ring transformation reaction., SYN COMMUN, 30(8), 2000, pp. 1457-1465
A convenient synthetic method for fully conjugated 3-alkyl- and 3-aryl-5-trifluoromethyl-1-methyl-1,2-thiazine 1-oxide from beta-alkoxyvinyl trifluoromethyl ketones
Authors: Bonacorso, HG Bittencourt, SRT Lourega, RV Flores, AFC Zanatta, N Martins, MAP
Citation: Hg. Bonacorso et al., A convenient synthetic method for fully conjugated 3-alkyl- and 3-aryl-5-trifluoromethyl-1-methyl-1,2-thiazine 1-oxide from beta-alkoxyvinyl trifluoromethyl ketones, SYNTHESIS-S, (10), 2000, pp. 1431-1434
Haloacetylated enol ethers: 15. Study of the regiochemistry of the cyclo-condensation of beta-alkoxyvinyl trihalomethyl ketones with N-methyl thiourea
Authors: Zanatta, N Madruga, CD Marisco, PD Flores, DC Bonacorso, HG Martins, MAP
Citation: N. Zanatta et al., Haloacetylated enol ethers: 15. Study of the regiochemistry of the cyclo-condensation of beta-alkoxyvinyl trihalomethyl ketones with N-methyl thiourea, J HETERO CH, 37(5), 2000, pp. 1213-1218
Regiochemistry of the reaction of 2-acylcyclohexanones with trimethyl orthoformate: A convenient one-pot method to obtain 7,7-dimethoxy alkanoate methyl esters
Authors: Martins, MAP Bastos, GP Sinhorin, AP Flores, AFC Bonacorso, HG Zanatta, N
Citation: Map. Martins et al., Regiochemistry of the reaction of 2-acylcyclohexanones with trimethyl orthoformate: A convenient one-pot method to obtain 7,7-dimethoxy alkanoate methyl esters, SYNLETT, (6), 1999, pp. 789-791
O-17 NMR chemical shifts: a simple and useful rule for substituent additivity on oxygen atoms with a coordination number of two
Authors: Martins, MAP Zanatta, N Bonacorso, HG Siqueira, GM Flores, AFC
Citation: Map. Martins et al., O-17 NMR chemical shifts: a simple and useful rule for substituent additivity on oxygen atoms with a coordination number of two, MAGN RES CH, 37(11), 1999, pp. 852-855
Nonstatic metrics of the infinite cosmic string type - art. no. 107501.
Authors: Martins, MAP Moregula, AA Som, MM
Citation: Map. Martins et al., Nonstatic metrics of the infinite cosmic string type - art. no. 107501., PHYS REV D, 5910(10), 1999, pp. 7501
Regiospecific acylation of acetals. A convenient method to obtain beta-methoxyvinyl trichloromethyl ketones
Authors: Martins, MAP Bastos, GP Bonacorso, HG Zanatta, N Flores, AFC Siqueira, GM
Citation: Map. Martins et al., Regiospecific acylation of acetals. A convenient method to obtain beta-methoxyvinyl trichloromethyl ketones, TETRAHEDR L, 40(23), 1999, pp. 4309-4312
Haloacetylated enol ethers: 12 [18]. Regiospecific synthesis and structural determination of stable 5-hydroxy-1H-pyrazolines
Authors: Bonacorso, HG Oliveira, MR Wentz, AP Wastowski, AD de Oliveira, AB Hoerner, M Zanatta, N Martins, MAP
Citation: Hg. Bonacorso et al., Haloacetylated enol ethers: 12 [18]. Regiospecific synthesis and structural determination of stable 5-hydroxy-1H-pyrazolines, TETRAHEDRON, 55(2), 1999, pp. 345-352
Reactions of 1,1,1-trifluoro[chloro]-4-ethoxybut-3-en-2-ones with 1,3-dicarbonyl compounds: Synthesis of 5-acetyl[carboxyethyl]-1,1,1-trifluoro[chloro]hept-3-ene-2,6-diones and their cyclic derivatives phenol, pyridines, andazetone
Authors: Zanatta, N Barichello, R Bonacorso, HG Martins, MAP
Citation: N. Zanatta et al., Reactions of 1,1,1-trifluoro[chloro]-4-ethoxybut-3-en-2-ones with 1,3-dicarbonyl compounds: Synthesis of 5-acetyl[carboxyethyl]-1,1,1-trifluoro[chloro]hept-3-ene-2,6-diones and their cyclic derivatives phenol, pyridines, andazetone, SYNTHESIS-S, (5), 1999, pp. 765-768
Haloacetylated compounds: Solvent effects on the O-17 NMR chemical shifts of 1,1,1-trichloro-4-methoxy-3-alken-2-ones
Authors: Martins, MAP Siqueira, GM Flores, AFC Zanatta, N Bonacorso, HG
Citation: Map. Martins et al., Haloacetylated compounds: Solvent effects on the O-17 NMR chemical shifts of 1,1,1-trichloro-4-methoxy-3-alken-2-ones, SPECT LETT, 32(6), 1999, pp. 973-981
Molecular structure of heterocycles: 4# NMR spectroscopy, X-ray diffraction, and semiempirical MO calculations of 3-phenyl-5-hydroxy-5-trichloromethyl-4,5 dihydro-1H-pyrazole-1-carboxyamide.
Authors: Bonacorso, HG Martins, MAP Zanatta, N Oliveira, MR Wentz, AP Horner, M Bortoluzzi, AJ
Citation: Hg. Bonacorso et al., Molecular structure of heterocycles: 4# NMR spectroscopy, X-ray diffraction, and semiempirical MO calculations of 3-phenyl-5-hydroxy-5-trichloromethyl-4,5 dihydro-1H-pyrazole-1-carboxyamide., SPECT LETT, 32(5), 1999, pp. 851-865
Haloacetylated enol ethers. 14 [6]. Reaction of beta-alkoxyvinyl trifluoromethyl ketones with N-methylhydroxylamine
Authors: Martins, MAP Flores, AFC Bastos, GP Zanatta, N Bonacorso, HG
Citation: Map. Martins et al., Haloacetylated enol ethers. 14 [6]. Reaction of beta-alkoxyvinyl trifluoromethyl ketones with N-methylhydroxylamine, J HETERO CH, 36(4), 1999, pp. 837-840
Haloacetylated enol ethers. 13. Synthesis of N-[1-aryl(alkyl)-3-oxo-4,4,4-trichloro-1-buten-1-yl]-o-phenylenediamines and 2-trichloromethyl-4-aryl-3H-1,5-benzodiazepines
Authors: Bonacorso, HG Bittencourt, SRT Wastowski, AD Wentz, AP Zanatta, N Martins, MAP
Citation: Hg. Bonacorso et al., Haloacetylated enol ethers. 13. Synthesis of N-[1-aryl(alkyl)-3-oxo-4,4,4-trichloro-1-buten-1-yl]-o-phenylenediamines and 2-trichloromethyl-4-aryl-3H-1,5-benzodiazepines, J HETERO CH, 36(1), 1999, pp. 45-48
Haloacetylated enol ethers. 11. Synthesis of 1-methyl- and 1-phenyl pyrazole-3(5)-ethyl esters. A one-pot procedure
Authors: Martins, MAP Freitag, RA da Rosa, A Flores, AFC Zanatta, N Bonacorso, HG
Citation: Map. Martins et al., Haloacetylated enol ethers. 11. Synthesis of 1-methyl- and 1-phenyl pyrazole-3(5)-ethyl esters. A one-pot procedure, J HETERO CH, 36(1), 1999, pp. 217-220
Trifluoroacetylation of unsymmetrical ketone acetals. A convenient route to obtain alkyl side chain trifluoromethylated heterocycles
Authors: Bonacorso, HG Martins, MAP Bittencourt, SRT Lourega, RV Zanatta, N Flores, AFC
Citation: Hg. Bonacorso et al., Trifluoroacetylation of unsymmetrical ketone acetals. A convenient route to obtain alkyl side chain trifluoromethylated heterocycles, J FLUORINE, 99(2), 1999, pp. 177-182
Haloacetylated enol ethers 10. Condensation of beta-alkoxyvinyl trifluoromethyl ketones with thiosemicarbazide. Synthesis of new trifluoromethyl 4,5-dihydro-1H-1-pyrazolethiocarboxyamides
Authors: Bonacorso, HG Wastowski, AD Zanatta, N Martins, MAP Naue, JA
Citation: Hg. Bonacorso et al., Haloacetylated enol ethers 10. Condensation of beta-alkoxyvinyl trifluoromethyl ketones with thiosemicarbazide. Synthesis of new trifluoromethyl 4,5-dihydro-1H-1-pyrazolethiocarboxyamides, J FLUORINE, 92(1), 1998, pp. 23-26
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