All articles by Gunnar Arnfinn Ulsaker

9 articles

Articles in volume 27 (1973)

N-Quaternary Compounds. Part XXX. Synthesis and Configurational Assignments of Chiral Pyridine Derivatives.

Undheim, Kjell; Ulsaker, Gunnar Arnfinn

Pages: 1059-1066.

DOI number: 10.3891/acta.chem.scand.27-1059
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N-Quaternary Compounds. Part XXXI. Sulphur Participation in the Cyclisation of a 2-Bromo-3-alpha-pyridylthiopropionic Acid.

Undheim, Kjell; Ulsaker, Gunnar Arnfinn

Pages: 1390-1394.

DOI number: 10.3891/acta.chem.scand.27-1390
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Articles in volume 28b (1974)

N-Quaternary Compounds. XXXVI. Nitro- and Diazonium-group Activation in Reactions of Pyridinium Derivatives.

Hagen, Sigurd; Ulsaker, Gunnar Arnfinn; Undheim, Kjell

Pages: 523-527.

DOI number: 10.3891/acta.chem.scand.28b-0523
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Articles in volume 29b (1975)

Mass Spectrometry of Onium Compounds. XIX. Ionisation Potentials of Some Pyridines and Pyridinium Betaines. Structure Analysis.

Hurum, Torgeir; Ulsaker, Gunnar Arnfinn; Undheim, Kjell

Pages: 1043-1046.

DOI number: 10.3891/acta.chem.scand.29b-1043
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Articles in volume 31b (1977)

N-Quaternary Compounds. Part XLV. Selective N-Vinylation of Pyridine-2-thiones by Decarboxylative Ring-opening of Intermediate 3-Carboxydihydrothiazolo[3,2-a]pyridinium Derivatives.

Ulsaker, Gunnar Arnfinn; Undheim, Kjell

Pages: 917-919.

DOI number: 10.3891/acta.chem.scand.31b-0917
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Articles in volume 32b (1978)

N-Quaternary Compounds. Part. XLVII. Vinylation of Pyridine-2-thiones by Base-induced Ring-opening of Intermediate Dihydrothiazolo[3,2-a]pyrdinium Derivatives.

Ulsaker, Gunnar Arnfinn; Undheim, Kjell

Pages: 66-67.

DOI number: 10.3891/acta.chem.scand.32b-0066
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N-Quaternary Compounds. Part IL. Hydride Shift and Lactam Formation in Diazotization of a beta-Aminopyridinium Derivative.

Ranger, Per-Olaf; Ulsaker, Gunnar Arnfinn; Undheim, Kjell

Pages: 70-72.

DOI number: 10.3891/acta.chem.scand.32b-0070
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N-Quaternary Compounds. Part L. Elimination Reactions in Dihydrothiazolo[3,2-a]pyridinium Derivates.

Ulsaker, Gunnar Arnfinn; Lærum, Tore; Undheim, Kjell

Pages: 460-462.

DOI number: 10.3891/acta.chem.scand.32b-0460
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N-Quaternary Compounds. Part LI. Deuterium Labelling of Thiazolo[3,2-a]pyridinium Betaines.

Lærum, Tore; Ulsaker, Gunnar Arnfinn; Undheim, Kjell

Pages: 651-654.

DOI number: 10.3891/acta.chem.scand.32b-0651
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