All articles by Mikael Begtrup
34 articlesArticles in volume 18 (1964)
| Reaction of Phenyl Azide with Amides of Malonic Acids and Phenylacetic Acid. Begtrup, Mikael; Pedersen, Christian Pages: 1333-1336. DOI number: 10.3891/acta.chem.scand.18-1333 |
Articles in volume 19 (1965)
| The Methylation of Some 5-Hydroxy-1,2,3-triazoles. Begtrup, Mikael; Pedersen, Christian Pages: 2022-2026. DOI number: 10.3891/acta.chem.scand.19-2022 |
Articles in volume 20 (1966)
| Studies on Methylated 1,2,3-Triazoles. II. Begtrup, Mikael; Pedersen, Christian Pages: 1555-1560. DOI number: 10.3891/acta.chem.scand.20-1555 |
Articles in volume 21 (1967)
| Studies on Methylated 1,2,3-Triazoles. III. Begtrup, Mikael; Pedersen, Christian Pages: 633-640. DOI number: 10.3891/acta.chem.scand.21-0633 |
| Studies on Methylated 1,2,3-Triazoles. IV. Preparation of 1-Methyl-4-hydroxy-1,2,3-triazole. Begtrup, Mikael; Hansen, Kai; Pedersen, Christian Pages: 1234-1238. DOI number: 10.3891/acta.chem.scand.21-1234 |
Articles in volume 22 (1968)
| Preparation of Esters of 4-Hydroxypyrazole-3,5-dicarboxylic Acid. Begtrup, Mikael; Larsen, P. Skov; Pedersen, Christian Pages: 2476-2478. DOI number: 10.3891/acta.chem.scand.22-2476 |
Articles in volume 23 (1969)
| Studies on Methylated 1,2,3-Triazoles. V. Preparation of 5-Substituted 1-Alkyl-4-hydroxy-1,2,3-triazoles. Begtrup, Mikael; Pedersen, Christian Pages: 1091-1100. DOI number: 10.3891/acta.chem.scand.23-1091 |
| Studies on Methylated 1,2,3-Triazoles. VI. Preparation of 2-Methyl Substituted 4-Hydroxy-1,2,3-triazoles. Pages: 2025-2030. DOI number: 10.3891/acta.chem.scand.23-2025 |
| Reactions between Azolium Salts and Nucleophilic Reagents. I. Bromo-1,2,3-Triazolium Salts as Brominating Reagents. Begtrup, Mikael; Kristensen, Palle Anker Pages: 2733-2740. DOI number: 10.3891/acta.chem.scand.23-2733 |
Articles in volume 24 (1970)
| Reactions between Azolium Salts and Nucleophilic Reagents. III. Base-catalyzed Interhalogenation and cine-Substitution of Bromo-pyrazolium Salts with Formation of 1,2-Dimethyl-pyrazol-4-in-3-ones. Pages: 1819-1835. DOI number: 10.3891/acta.chem.scand.24-1819 |
Articles in volume 25 (1971)
| Reactions between Azolium Salts and Nucleophilic Reagents. II. Bromo-1,2,3-triazolium Salts and Sodium Hydroxide. Pages: 249-259. DOI number: 10.3891/acta.chem.scand.25-0249 |
| Reactions between Azolium Salts and Nucleophilic Reagents. IV. 1,3-Dimethyl-1,2,3-triazolium Salts and Sodium Methoxide. Pages: 795-802. DOI number: 10.3891/acta.chem.scand.25-0795 |
| Reactions Between Azolium Salts and Nucleophilic Reagents. V. 1,3-Disubstituted 1,2,3-Triazolium Salts Sodium Methoxide. Pages: 803-812. DOI number: 10.3891/acta.chem.scand.25-0803 |
| Reactions between Azolium Salts and Nucleophilic Reagents. VI. Preparation of 1,2-Disubstituted 1,2,3-Triazolium Salts and Their Reactions with Sodium Hydroxide and Methoxide. Begtrup, Mikael; Poulsen, Keld Venø Pages: 2087-2098. DOI number: 10.3891/acta.chem.scand.25-2087 |
| Reactions between Azolium Salts and Nucleophilic Reagents. VII. The Preparation and Properties of 1,3-Disubstituted 4-Methylthio-1,2,3-triazolium Salts. Pages: 3500-3508. DOI number: 10.3891/acta.chem.scand.25-3500 |
Articles in volume 26 (1972)
| The Conversion of 1,2-Disubstituted 1,2,3-Triazol-5-ones to 2-Substituted 4-Hydroxy-1,2,3-triazoles. Pages: 715-718. DOI number: 10.3891/acta.chem.scand.26-0715 |
| Reactions Between Azolium Salts and Nucleophilic Reagents. VIII. The Preparation and Properties of 1,3-Disubstituted 4-(1,2,3-Triazolio)sulfides. Pages: 1243-1257. DOI number: 10.3891/acta.chem.scand.26-1243 |
Articles in volume 27 (1973)
| Reactions between Azolium Salts and Nucleophilic Reagents. IX. Further Investigations of the cine-Substitution of Pyrazolium Salts. Pages: 2051-2074. DOI number: 10.3891/acta.chem.scand.27-2051 |
| Reactions between Azolium Salts and Nucleophilic Reagents. X. The Reaction of 1,2-Disubstituted Pyrazolium Salts with N-Bromoacetamide and Sodium Hydroxide or Methoxide. Begtrup, Mikael; Conradsen, Niels; Olsen, Jørgen Henrik Pages: 2930-2940. DOI number: 10.3891/acta.chem.scand.27-2930 |
| 13C-NMR Spectra of Phenyl-substituted Azoles: a Conformational Study. Pages: 3101-3110. DOI number: 10.3891/acta.chem.scand.27-3101 |
Articles in volume 28b (1974)
| 1H- and 13C-NMR Spectra of Phenyl-substituted Azole Derivatives. II. A Conformational Study. Pages: 61-77. DOI number: 10.3891/acta.chem.scand.28b-0061 |
Articles in volume 29b (1975)
| Reactions between Azolium Anions and Electrophilic Reagents. I. Direct Thiation of 1,3-Disubstituted 1,2,3-Triazolium Anions with Sulfur. Pages: 141-144. DOI number: 10.3891/acta.chem.scand.29b-0141 |
Articles in volume 37b (1983)
| Addition of Nitrite Ions to 1-Methoxy-1,2,3-triazolium Salts. Formation of Nitro and Hydroxy Substituted Triazoles. Begtrup, Mikael; Knudsen, Niels Ole Pages: 97-100. DOI number: 10.3891/acta.chem.scand.37b-0097 |
Articles in volume 39a (1985)
| 13C NMR Chemical Shift Displacements and 13C--19F Coupling Constant Changes Induced by Interaction of Weak Bases and Trifluoroacetic Acid. Determination of Basicity Parameters. Pages: 117-124. DOI number: 10.3891/acta.chem.scand.39a-0117 |
Articles in volume 40b (1986)
| 2-Alkyl-1,2,3-Triazole 1-Oxides: Preparation and Use in the Synthesis of 2-Alkyltriazoles. Begtrup, Mikael; Nytoft, Hans Peter Pages: 262-269. DOI number: 10.3891/acta.chem.scand.40b-0262 |
Articles in volume 41b (1987)
| 3-Substituted 1,2,3-Triazole-1-Oxides. Preparation and Reactions. Begtrup, Mikael; Jonsson, Gudjon Pages: 724-735. DOI number: 10.3891/acta.chem.scand.41b-0724 |
Articles in volume 42a (1988)
| The Molecular Structure and Tautomer Equilibrium of Gaseous 1,2,3-Triazole Studied by Microwave Spectroscopy, Electron Diffraction and Ab Initio Calculations. Begtrup, Mikael; Nielsen, Claus Jørgen; Nygaard, Lise; Samdal, Svein; Sjøgren, Carl Einar; Sørensen, Georg Ole Pages: 500-514. DOI number: 10.3891/acta.chem.scand.42a-0500 |
Articles in volume 44 (1990)
| Alkylation, Acylation, and Silyation of Azoles. Begtrup, Mikael; Larsen, Peter Pages: 1050-1057. DOI number: 10.3891/acta.chem.scand.44-1050 |
Articles in volume 46 (1992)
| New Methods for the Introduction of Substituents into Thiazoles. Begtrup, Mikael; Hansen, Lars Bo L. Pages: 372-383. DOI number: 10.3891/acta.chem.scand.46-0372 |
| 2-Substituted Pyrazole 1-Oxides. Preparation and Reaction with Electrophilic Reagents. Begtrup, Mikael; Larsen, Peter; Vedsø, Per Pages: 972-980. DOI number: 10.3891/acta.chem.scand.46-0972 |
| Deprotonation of 2-Substituted Pyrazole 1-Oxides. Almena, Inés; Begtrup, Mikael; de la Hoz, Antonio Pages: 1096-1100. DOI number: 10.3891/acta.chem.scand.46-1096 |
| Activation of Phosphorus Oxychloride for Hydroxy to Chlorine Displacement Reactions. Preparation of 3-Chloro- and 3-Ethylthio-4,5,6,7-tetrahydroisoxazolo[4,5-c]pyridine. Andersen, Kim; Begtrup, Mikael Pages: 1130-1132. DOI number: 10.3891/acta.chem.scand.46-1130 |
Articles in volume 49 (1995)
| The Mechanism of the Thermolytic Ring Opening of 5-Azido-4-formyl-3-methyl-1-phenylpyrazole. Becher, Jan; Begtrup, Mikael; Gjerløv, Anne; Larsen, Sine; Dehaen, Wim; Christensen, Lene Krogh Pages: 57-63. DOI number: 10.3891/acta.chem.scand.49-0057 |
Articles in volume 50 (1996)
| Preparation of 1-Hydroxypyrazoles and 1-Hydroxy-1,2,3-triazoles by Dealkylation of Pyrazole and Triazole N-Oxides. Pages: 549-555. DOI number: 10.3891/acta.chem.scand.50-0549 |