All articles by Leiv K. Sydnes

32 articles

Articles in volume 31b (1977)

Chemistry of gem-Dihalocyclopropanes. XI. Reactions of Dihalocarbenes with Allylic Alcohols.

Kleveland, Karsten; Skattebøl, Lars; Sydnes, Leiv K.

Pages: 463-468.

DOI number: 10.3891/acta.chem.scand.31b-0463
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Articles in volume 36b (1982)

Chemistry of gem-Dihalocyclopropanes. XVII. Cyclopropylidene Insertion. Formation and Ring Opening of Bicyclo[1.1.0]butan-2-olate.

Nilsen, Nils O.; Skattebøl, Lars; Sydnes, Leiv K.

Pages: 587-592.

DOI number: 10.3891/acta.chem.scand.36b-0587
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Articles in volume 37b (1983)

Separation and Characterization of Mononitro Derivatives of Phenanthrene, Pyrene, Chrysene, Fluoranthene and Triphenylene.

Svendsen, Helge; Rønningsen, Hans-Petter; Sydnes, Leiv K.; Greibrokk, Tyge

Pages: 833-844.

DOI number: 10.3891/acta.chem.scand.37b-0833
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Articles in volume 38b (1984)

Separation and Characterization of Mononitro Derivatives of Benzo[a]pyrene, Benzo[e]pyrene and Benzo[ghi]perylene.

Johansen, Einar; Sydnes, Leiv K.; Greibrokk, Tyge

Pages: 309-318.

DOI number: 10.3891/acta.chem.scand.38b-0309
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Synthesis of D-Ala--D-Ala Analogues with Postulated Antibacterial Activity.

Loennechen, Thrina; Bergan, Tom; Sydnes, Leiv K.; Aasen, Arne J.

Pages: 647-655.

DOI number: 10.3891/acta.chem.scand.38b-0647
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Preparation and Characterization of Dinitroperylenes.

Nordbotten, Astrid; Sydnes, Leiv K.; Greibrokk, Tyge

Pages: 701-706.

DOI number: 10.3891/acta.chem.scand.38b-0701
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Articles in volume 39b (1985)

Silver Ion-assisted Methanolysis of Some Functionalized Bromocyclopropane Derivatives.

Sydnes, Leiv K.; Hemmingsen, Tor H.

Pages: 93-102.

DOI number: 10.3891/acta.chem.scand.39b-0093
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Photochemical Oxidation of Toluene and Xylenes. Concurrent Formation of Products Due to Photooxygenation and Photodimerization.

Sydnes, Leiv K.; Burkow, Ivan C.; Hansen, Sissel H.

Pages: 829-835.

DOI number: 10.3891/acta.chem.scand.39b-0829
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Characterization of Nitrobenzanthracenes and Nitrodibenzanthracenes.

Iversen, Berit; Sydnes, Leiv K.; Greibrokk, Tyge

Pages: 837-847.

DOI number: 10.3891/acta.chem.scand.39b-0837
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Articles in volume 40b (1986)

Regioselective Photocycloaddition of 2-Cyclopentenone to Some Allenes.

Sydnes, Leiv K.; Stensen, Wenche

Pages: 657-664.

DOI number: 10.3891/acta.chem.scand.40b-0657
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Articles in volume 41b (1987)

Ultrasound-Mediated Synthesis and Mass Spectrometric Fragmentation of Dimethyl-Substituted 1,2-Diphenylethanols, Convenient Dimethylstilbene Precursors.

Burkow, Ivan C.; Sydnes, Leiv K.; Ubeda, Danielle C. N.

Pages: 235-244.

DOI number: 10.3891/acta.chem.scand.41b-0235
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Photochemical [2+2] Cycloadditions. II. Photochemical Addition of 3-Butyl-2-cyclopentenone to Some omega-Bromo-1-alkenes.

Sydnes, Leiv K.; Meling, Helge L.

Pages: 660-667.

DOI number: 10.3891/acta.chem.scand.41b-0660
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Crystal Structures of 2,2-Dibromo-1-methylcyclopropanecarboxylic Acid, 2,2-Dichloro-1-methylcyclopropanecarboxylic Acid and 2-(2,2-Dichloro-2-methylcyclopropyl)ethanoic Acid.

Rømming, Christian; Sydnes, Leiv K.

Pages: 717-723.

DOI number: 10.3891/acta.chem.scand.41b-0717
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Articles in volume 42a (1988)

1,1-Dibromo-2-phenyl-2-(2-propenyl)cyclopropane: Its Crystal Structure and Its 1H NMR Spectrum Containing an Unusual Long-Range Coupling.

Kocharian, Armen K.; Nilssen, Ann V.; Pettersen, Anita; Rømming, Christian; Sydnes, Leiv K.

Pages: 463-469.

DOI number: 10.3891/acta.chem.scand.42a-0463
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Articles in volume 42b (1988)

Photochemical [2+2] Cycloadditions. III. Addition of 4-Substituted 2-Cyclopentenones to Allene; Configuration Determination by Lanthanide-Induced Shift Studies.

Stensen, Wenche; Svendsen, John S.; Hofer, Otmar; Sydnes, Leiv K.

Pages: 259-268.

DOI number: 10.3891/acta.chem.scand.42b-0259
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Silver-ion Assisted Methanolysis of 2,2-Dibromo-1-methylcyclopropanecarboxylic Acid and 2,2-Dibromo-1,3-dimethylcyclopropanecarboxylic Acid.

Hemmingsen, Tor H.; Svendsen, John S.; Sydnes, Leiv K.

Pages: 651-661.

DOI number: 10.3891/acta.chem.scand.42b-0651
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Articles in volume 43 (1989)

Photochemical Oxidation of Benzyl Alcohol.

Hansen, Sissel H.; Sydnes, Leiv K.

Pages: 395-398.

DOI number: 10.3891/acta.chem.scand.43-0395
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Articles in volume 44 (1990)

Selective Formation of 4-Bromo-3-methyl-2-(5H)-furanone by Solvolysis of 2,2-Dibromo-1-methylcyclopropanecarboxylic Acid.

Svendsen, John S.; Sydnes, Leiv K.

Pages: 202-204.

DOI number: 10.3891/acta.chem.scand.44-0202
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Preparation of Various 1,1-Dihalo-2-haloalkylcyclopropanes and 1,1,2-Trihalocyclopropanes and their Reduction to Dihalides using Tributyltin Hydride.

Pettersen, Anita; Jørgensen, Evy; Sydnes, Leiv K.

Pages: 603-609.

DOI number: 10.3891/acta.chem.scand.44-0603
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Articles in volume 45 (1991)

Long-Range NMR Coupling between a Cyclopropyl Proton and a Proton next to the Ring in a Number of 2,2-Disubstituted 1,1-Dihalocyclopropanes.

Sydnes, Leiv K.; Pettersen, Anita; Drabløs, Finn; Rømming, Christian

Pages: 902-913.

DOI number: 10.3891/acta.chem.scand.45-0902
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Articles in volume 46 (1992)

Preparation of Some 2-Aryl-1-bromocyclopropanes by Irradiation of the Corresponding gem-Dibromocyclopropanes with Pyrex-filtered Light.

Sydnes, Leiv K.; Nilssen, Ann V.; Jørgensen, Evy; Pettersen, Anita

Pages: 661-668.

DOI number: 10.3891/acta.chem.scand.46-0661
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Articles in volume 47 (1993)

Photochemical [2 + 2] Cycloadditions. IV. Cycloaddition of 2-Cyclopentenone to Some (omega--1)-Alken-1-ols; Evidence for Regioselectivity due to Hydrogen Bonding.

Sydnes, Leiv K.; Hansen, Kjersti I.; Oldroyd, David L.; Weedon, Alan C.; Jørgensen, Evy

Pages: 916-924.

DOI number: 10.3891/acta.chem.scand.47-0916
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Articles in volume 50 (1996)

Formation of Acetylenic Acetals by Ring Opening of 1,1,2-Trihalocyclopropanes under Phase-Transfer Conditions.

Sydnes, Leiv K.; Bakstad, Einar

Pages: 446-453.

DOI number: 10.3891/acta.chem.scand.50-0446
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Articles in volume 51 (1997)

Photochemical Reduction of gem-Dihalocyclopropanes. II. Proof of Formation of a Cyclopropyl Radical During Irradiation of 1,1-Dibromo-2-phenylcyclopropanes.

Sydnes, Leiv K.; Øvrebø, Hans H.

Pages: 889-891.

DOI number: 10.3891/acta.chem.scand.51-0889
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Polymorphism of Gadolinium Diethylenetriaminepentaacetic Acid Bis(methylamide) (GdDTPA-BMA) and Dysprosium Diethylenetriaminepentaacetic Acid Bis(methylamide) (DyDTPA-BMA).

Aukrust, Audun; Raknes, Åse; Sjøgren, Carl E.; Sydnes, Leiv K.

Pages: 918-926.

DOI number: 10.3891/acta.chem.scand.51-0918
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A New and Simple Synthesis of Cyclonon-2-ynone.

Sydnes, Leiv K.; Bakstad, Einar

Pages: 1132-1133.

DOI number: 10.3891/acta.chem.scand.51-1132
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Articles in volume 52 (1998)

Regiospecific Ring Opening of Some Methyl- and Phenyl-Substituted 1,1,2-Trihalocyclopropanes to Acetylenic Acetals or Ketals by Variation of Reaction Conditions.

Bakstad, Einar; Sydnes, Leiv K.

Pages: 1029-1033.

DOI number: 10.3891/acta.chem.scand.52-1029
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Silver Ion-assisted Solvolysis of trans-2,2-Dibromo-1,3-dimethylcyclopropanecarboxylic Acid: Selective Formation of 4-Bromo-3,5-dimethyl-2(5H)-furanone.

Sydnes, Leiv K.; Mungaroo, Rajesh; Aanesen, Berit A.

Pages: 1386-1391.

DOI number: 10.3891/acta.chem.scand.52-1386
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Silver Ion-assisted Solvolysis of 2,2-Dibromo-1-phenylcyclopropanecarboxylic Acid: Solvent-dependent Competition between Decarboxylation and Ring Closure.

Sydnes, Leiv K.; Mungaroo, Rajesh; Svendsen, John S.

Pages: 1392-1398.

DOI number: 10.3891/acta.chem.scand.52-1392
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Articles in volume 53 (1999)

Methylphenanthrenecarbaldehydes by Selective Cerium(IV) Oxidation of Dimethylphenanthrenes.

Sydnes, Leiv K.; Burkow, Ivan C.; Kvivesen, Mona; Sæthre, Leif J.

Pages: 301-304.

DOI number: 10.3891/acta.chem.scand.53-0301
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Photochemical Reduction of gem-Dihalocyclopropanes. III. Debromination of Some Compounds Containing Two 1,1-Dibromocyclopropane Moieties.

Sydnes, Leiv K.; Øvrebø, Hans H.; Engebretsen, Thoralf

Pages: 417-424.

DOI number: 10.3891/acta.chem.scand.53-0417
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Neighbouring-group Influence on the Ring Opening of 2-Aryloxymethyl-1,1,2-tribromocyclopropanes under Phase-transfer Conditions.

Bakstad, Einar; Olsen, Are S.; Sandberg, Marcel; Sydnes, Leiv K.

Pages: 465-472.

DOI number: 10.3891/acta.chem.scand.53-0465
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