Results 131 to 140 of about 6,135 (165)
ChemInform Abstract: Transformation of 1,2,3,7a‐Tetrahydroimidazo[1,2‐b]isoxazole Derivatives into Isoxazoles. [PDF]
ChemInform, 2007 AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Galina V. Romanenko +4 more
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2008
Isoxazoles, benzisoxazoles, isoxazolines, and isoxazolidines are classes of heterocyclic compounds having a remarkable number of applications and are very versatile building blocks in organic synthesis. The major developments on the chemistry of these heterocycles reported in the literature from 1996 to 2006 are reviewed.
Cordero, Franca M. +2 more
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Isoxazoles, benzisoxazoles, isoxazolines, and isoxazolidines are classes of heterocyclic compounds having a remarkable number of applications and are very versatile building blocks in organic synthesis. The major developments on the chemistry of these heterocycles reported in the literature from 1996 to 2006 are reviewed.
Cordero, Franca M. +2 more
openaire +4 more sources
Inorganica Chimica Acta, 1975
Abstract A number of divalent 3d metal chloride and perchlorate complexes with isoxazole were obtained by interaction of salt and ligand in triethyl orthoformate-ethanol. Characterization of these complexes was based on spectral (ir--electronic), magnetic and conductance evidence.
C.M. Mikulski +4 more
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Abstract A number of divalent 3d metal chloride and perchlorate complexes with isoxazole were obtained by interaction of salt and ligand in triethyl orthoformate-ethanol. Characterization of these complexes was based on spectral (ir--electronic), magnetic and conductance evidence.
C.M. Mikulski +4 more
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Isoxazoles I: Protonation of Isoxazole Derivatives in Aqueous Sulfuric Acid
Journal of Pharmaceutical Sciences, 1973The protonation of 3-amino-5-methylisoxazole, 5-amino-3,4-dimethylisoxazole, sulfamethoxazole (N-sulfanilamido-5-methyl-3-isoxazole), and sulfisoxazole (N-sulfanilamido-3,4-dimethyl-5-isoxazole) in aqueous sulfuric acid was studied. The pKSH+ and log SH+/S or log SH2+2/SH+ values were determined by UV spectrophotometry.
M. Martinez de Bertorello +1 more
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The Journal of Organic Chemistry, 2019
The first synthesis of isoxazole-4-carboxylic acid derivatives by domino isoxazole-isoxazole isomerization is reported. Fe(II)-catalyzed isomerization of 4-acyl-5-methoxy-/5-aminoisoxazoles (dioxane, 105 °C) leads to the formation of isoxazole-4-carboxylic esters and amides in good yields. 4-Formyl-5-methoxyisoxazoles give methyl oxazole-4-carboxylates
Anna V. Serebryannikova +3 more
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The first synthesis of isoxazole-4-carboxylic acid derivatives by domino isoxazole-isoxazole isomerization is reported. Fe(II)-catalyzed isomerization of 4-acyl-5-methoxy-/5-aminoisoxazoles (dioxane, 105 °C) leads to the formation of isoxazole-4-carboxylic esters and amides in good yields. 4-Formyl-5-methoxyisoxazoles give methyl oxazole-4-carboxylates
Anna V. Serebryannikova +3 more
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Synthesis of o-dimethylene isoxazole via isoxazole-fused 3-sulfolene
Tetrahedron Letters, 1992AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Chang, Ruei-Chih, Chou, Ta-Shue
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Tetrahedron, 1967
Abstract The structure and the spectra of several aminoalkylisoxazoles are presented. Proof is given that aminomethylation (mannich reaction) of isoxazoles can involve different nucleophilic centres.
G. Palamidessi +5 more
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Abstract The structure and the spectra of several aminoalkylisoxazoles are presented. Proof is given that aminomethylation (mannich reaction) of isoxazoles can involve different nucleophilic centres.
G. Palamidessi +5 more
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Oxazolo[4,5-d]isoxazole Derivatives and 3,4-Disubstituted Isoxazoles from Isoxazol-5(4H)-ones
Synthetic Communications, 1993AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
E.M. Beccalli, A. Marchesini, T. Pilati
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Trisubstituted isoxazoles from 3,4-disubstituted-(2H)-isoxazol-5-ones
Tetrahedron, 1998AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
E.M. Beccalli, M.L. Gelmi, A. Marchesini
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ChemInform Abstract: Ozonolysis of Substituted Isoxazoles.
ChemInform, 1994AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
K. Takahashi +2 more
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