All articles by Jan Sandström

56 articles

Articles in volume 14 (1960)

Reactions between Benzylhydrazine and Dithioesters.

Forsgren, Björn; Sandström, Jan

Pages: 789-796.

DOI number: 10.3891/acta.chem.scand.14-0789
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Cyclizations of Thiocarbohydrazide and its Mono-hydrazones. Part I. Reactions with Orthoesters.

Sandström, Jan

Pages: 1037-1042.

DOI number: 10.3891/acta.chem.scand.14-1037
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Cyclizations of Thiocarbohydrazide and its Mono-hydrazones. Part II. Reactions with Dialkyl Trithiocarbonates.

Sandström, Jan

Pages: 1939-1944.

DOI number: 10.3891/acta.chem.scand.14-1939
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Articles in volume 15 (1961)

Tautomeric Cyclic Thiones. I. "Mercapto-thiadiazolyl-hydrazones".

Arvidsson, Kristina; Sandström, Jan

Pages: 1179-1180.

DOI number: 10.3891/acta.chem.scand.15-1179
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Cyclizations of Thiocarbohydrazide and its Mono-hydrazones. Part III. Reactions with Carbon Disulphide in Pyridine.

Sandström, Jan

Pages: 1295-1302.

DOI number: 10.3891/acta.chem.scand.15-1295
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The True Dithio-p-urazine and Some Related Sym-tetrazine Derivatives.

Sandström, Jan

Pages: 1575-1582.

DOI number: 10.3891/acta.chem.scand.15-1575
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Articles in volume 16 (1962)

The Electronic Spectra of Thioamides and Thiohydrazides. Part I. LCAO-MO Treatment and Band Classification for Thiobenzamides.

Sandström, Jan

Pages: 1616-1626.

DOI number: 10.3891/acta.chem.scand.16-1616
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The Reaction between Thiohydrazines and Ethyl Benzoylchloroacetate. Part I. Formation of Ethyl 5-Phenylpyrazole-4-carboxylates.

Sandström, Jan

Pages: 2395-2405.

DOI number: 10.3891/acta.chem.scand.16-2395
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Articles in volume 17 (1963)

The Reaction between Thiohydrazides and Ethyl Benzoylchloroacetate. Part II. Formation of Ethoxycarbonylmethyl Thiolcarboxylate Benzoylhydrazones.

Sandström, Jan

Pages: 95-102.

DOI number: 10.3891/acta.chem.scand.17-0095
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The Electronic Spectra of Thioamides and Thiohydrazides. Part II. N-Acetylthioamides.

Sandström, Jan

Pages: 678-688.

DOI number: 10.3891/acta.chem.scand.17-0678
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The Electronic Spectra of Thioamides and Thiohydrazides. Part III. Thiohydrazides.

Sandström, Jan; Sunner, Stig

Pages: 731-737.

DOI number: 10.3891/acta.chem.scand.17-0731
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The Electronic Spectra of Thioamides and Thiohydrazides. Part IV. Alkylidene and Aralkylidene Thiohydrazides.

Sandström, Jan

Pages: 937-946.

DOI number: 10.3891/acta.chem.scand.17-0937
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The Electronic Spectra of Thioamides and Thiohydrazides. Part V. N-Acetylthiohydrazides and N-Phenylthiohydrazides. A Comparison with Thiohydrazones.

Sandström, Jan

Pages: 1380-1390.

DOI number: 10.3891/acta.chem.scand.17-1380
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Cyclizations of Thiocarbohydrazide and its Mono-hydrazones. Part IV. Reactions with Carboxymethyl Dithiobenzoate.

Sandström, Jan

Pages: 1595-1598.

DOI number: 10.3891/acta.chem.scand.17-1595
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Articles in volume 18 (1964)

Tautomerism, Acidity, and Electronic Spectra of 1,3,4-Thiadiazolylhydrazones. A Comparison with Amino-heterocycles.

Sandström, Jan

Pages: 871-888.

DOI number: 10.3891/acta.chem.scand.18-0871
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The Electronic Spectra of Thioamides and Thiohydrazides. Part VI. Conjugation and Steric Effects in Thiooxamide Derivatives.

Persson, Brittmarie; Sandström, Jan

Pages: 1059-1077.

DOI number: 10.3891/acta.chem.scand.18-1059
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Articles in volume 19 (1965)

The Electronic Spectra of Thioamides and Thiohydrazides. Part VII. 1,2,3,4-Tetrahydroisoquinoline-1-thiones.

Sandström, Jan; Uppström, Bengt

Pages: 2432-2433.

DOI number: 10.3891/acta.chem.scand.19-2432
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Articles in volume 20 (1966)

Tautomeric Cyclic Thiones. Part II. Tautomerism, Acidity and Electronic Spectra of Thioamides of the Oxadiazole, Thiadiazole, and Thiazole Groups.

Sandström, Jan; Wennerbeck, Ingegerd

Pages: 57-71.

DOI number: 10.3891/acta.chem.scand.20-0057
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The Electronic Spectra of Thioamides and Thiohydrazides. Part VIII. Five- and Six-membered Thiolactams and Thioimides.

Berg, Ulf; Sandström, Jan

Pages: 689-697.

DOI number: 10.3891/acta.chem.scand.20-0689
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Articles in volume 21 (1967)

"Mesoinic" Rhodanine Derivatives. Preparation and Crystal Structure Determination.

Abrahamsson, Sixten; Westerdahl, Anders; Isaksson, Gunilla; Sandström, Jan

Pages: 442-456.

DOI number: 10.3891/acta.chem.scand.21-0442
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The Barriers to Internal Rotation in N,N-Dimethylcyclopropanecarboxamide and -carbothioamide, and the Ultraviolet Spectrum of the Carbothioamide.

Isaksson, Gunilla; Sandström, Jan

Pages: 1605-1611.

DOI number: 10.3891/acta.chem.scand.21-1605
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NMR Spectra and Conformations of Some Simple N-Methylthioamides.

Sandström, Jan; Uppström, Bengt

Pages: 2254-2260.

DOI number: 10.3891/acta.chem.scand.21-2254
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Articles in volume 22 (1968)

1,1'-Thiocarbonyl-bis-pyrazoles. Part I. Spectroscopic and Dipole Moment Studies.

Carlsson, Lars-Ola; Sandström, Jan

Pages: 1655-1668.

DOI number: 10.3891/acta.chem.scand.22-1655
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Articles in volume 23 (1969)

Barriers to Internal Rotation in N,N-Dimethylselenoamides. A Complete Line Shape Analysis.

Jensen, Kai Arne; Sandström, Jan

Pages: 1911-1915.

DOI number: 10.3891/acta.chem.scand.23-1911
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Tautomeric Cyclic Thiones. Part III. Preparation of N- and S-Methyl Derivatives of Some Azoline-2-thiones.

Kjellin, Gunnar; Sandström, Jan

Pages: 2879-2887.

DOI number: 10.3891/acta.chem.scand.23-2879
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Tautomeric Cyclic Thiones. Part IV. The Thione-thiol Equilibrium in some Azoline-2-thiones.

Kjellin, Gunnar; Sandström, Jan

Pages: 2888-2899.

DOI number: 10.3891/acta.chem.scand.23-2888
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Articles in volume 24 (1970)

1,1'-Thiocarbonyl-bis-pyrazoles. Part II. Substituent Effects on Rates of Ethanolysis.

Carlsson, Lars-Ola; Sandström, Jan

Pages: 299-303.

DOI number: 10.3891/acta.chem.scand.24-0299
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On an Allylic Type Rearrangement on Treatment of alpha-Methoxy-2-benzo[b]thienylacetic Acid with Hydrogen Bromide.

Gronowitz, Salo; Rehnö, Jan; Sandström, Jan

Pages: 304-311.

DOI number: 10.3891/acta.chem.scand.24-0304
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Barriers to Internal Rotation, Ultraviolet Spectra, and Conformations of N,N-Dimethyl-N'-arylthioureas and N,N,N'-Trimethylthioureas.

Isaksson, Gunilla; Sandström, Jan

Pages: 2565-2582.

DOI number: 10.3891/acta.chem.scand.24-2565
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Studies of Polarized Ethylenes. Part II. Preparation of 1,1-Bis-dimethylaminoethylenes and 1,3-Dimethyl-2-methylene-imidazolidines.

Ericsson, Eva; Sandström, Jan; Wennerbeck, Ingegerd

Pages: 3102-3108.

DOI number: 10.3891/acta.chem.scand.24-3102
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Studies of Polarized Ethylenes. Part III. Reactions of 1-Dimethylamino-1-methylthio- and 1,1-Bis(methylthio)-2-acylethylenes with Hydrazines.

Liljefors, Tommy; Sandström, Jan

Pages: 3109-3115.

DOI number: 10.3891/acta.chem.scand.24-3109
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Articles in volume 27 (1973)

Studies of Polarized Ethylenes. Part VI. Internal Rotations, Dipole Moments, and Ultraviolet Spectra of Nitroethylenes. Experimental Results and PPP Calculations.

Isaksson, Gunilla; Sandström, Jan

Pages: 1183-1191.

DOI number: 10.3891/acta.chem.scand.27-1183
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Articles in volume 28b (1974)

The Crystal Structure of Two Polarized Ethylenes.

Abrahamsson, Sixten; Rehnberg, Gunnar; Liljefors, Tommy; Sandström, Jan

Pages: 1109-1120.

DOI number: 10.3891/acta.chem.scand.28b-1109
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Articles in volume 31b (1977)

Conformational Analysis of N,N'-Dimethyl-N,N'-diacyl-1,2-diaminoethanes and -1,3-diaminopropanes and Their Thio Analogues. A 1H NMR and Molecular Mechanics Study Including Dipole-dipole Interactions.

Karlsson, Sören; Liljefors, Tommy; Sandström, Jan

Pages: 399-406.

DOI number: 10.3891/acta.chem.scand.31b-0399
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Articles in volume 32b (1978)

Barriers to Rotation about the Exocyclic Carbon--Carbon Bond in some Quinone Methides with Donor Substituents on the Exocyclic Carbon.

Berg, Ulf; Sandström, Jan

Pages: 41-46.

DOI number: 10.3891/acta.chem.scand.32b-0041
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Studies of Polarized Ethylenes. IX. Electrophilic Addition and Substitution Reactions.

Karlsson, Sören; Sandström, Jan

Pages: 141-148.

DOI number: 10.3891/acta.chem.scand.32b-0141
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Studies of Polarized Ethylenes. Part X. Activation Enthalpies and Entropies to Rotation Around the Carbon-Carbon Double Bond in Two Ketene Mercaptals.

Dreier, Claus; Henriksen, Lars; Karlsson, Sören; Sandström, Jan

Pages: 281-285.

DOI number: 10.3891/acta.chem.scand.32b-0281
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Studies of Polarized Ethylenes. Part XII. Conformational Analysis of 2-Dimethylamino-2-methylthioethylenes.

Sandström, Jan; Wennerbeck, Ingegerd

Pages: 421-430.

DOI number: 10.3891/acta.chem.scand.32b-0421
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Articles in volume 35b (1981)

Ultraviolet Absorption and Photoelectron Spectra of Some Cyclic and Open-chain Mono- and Dithiooxamides.

Henriksen, Lars; Isaksson, Roland; Liljefors, Tommy; Sandström, Jan

Pages: 489-495.

DOI number: 10.3891/acta.chem.scand.35b-0489
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Articles in volume 36b (1982)

The Torsional Barrier of the Dimethylamino Group in N,N-Dimethyltellurobenzamide. A Comparison with N,N-Dimethylbenzamide and its Thio and Seleno Analogues.

Berg, Ulf; Henriksen, Lars; Lerstrup, Knud A.; Sandström, Jan

Pages: 19-21.

DOI number: 10.3891/acta.chem.scand.36b-0019
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Rotational Barriers and Electronic Structures of Some 6,6-Diheterosubstituted Fulvenes.

Olsson, Thomas; Sandström, Jan

Pages: 23-30.

DOI number: 10.3891/acta.chem.scand.36b-0023
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Articles in volume 38b (1984)

Conformational Analysis of Crowded Anilides and Thioanilides. The "En-Face" Steric Effect of Aryl Groups.

Pettersson, Ingrid; Sandström, Jan

Pages: 397-405.

DOI number: 10.3891/acta.chem.scand.38b-0397
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Conformational Analysis of 1- and 3-Isopropylindoles. A 1H NMR and Molecular Mechanics Study.

Nilsson, Ingemar; Berg, Ulf; Sandström, Jan

Pages: 491-499.

DOI number: 10.3891/acta.chem.scand.38b-0491
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Articles in volume 39b (1985)

The Crystal and Molecular Structure of 3-Isopropyl-5-phenylrhodanine.

Rang, Knut; Sandström, Jan; Thell, Lars; Yang, Qibin

Pages: 123-129.

DOI number: 10.3891/acta.chem.scand.39b-0123
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Articles in volume 40b (1986)

Studies of Chiral Indoles. Part II: Conformational Analysis of 1- and 3-(1-Phenylethyl) Indoles. A Dynamic 1H NMR, Molecular Mechanics, and Circular Dichroism Investigation.

Nilsson, Ingemar; Berg, Ulf; Sandström, Jan

Pages: 625-651.

DOI number: 10.3891/acta.chem.scand.40b-0625
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Conformational Studies of 3-Alkylrhodanines and an Analogous Mesoionic Compound.

Pettersson, Ingrid; Rang, Knut; Sandström, Jan

Pages: 751-756.

DOI number: 10.3891/acta.chem.scand.40b-0751
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Articles in volume 41b (1987)

Studies of Chiral Indoles. Part III. The Absolute Configuration of 1-(1-Phenylethyl)indole.

Nilsson, Ingemar; Berg, Ulf; Sandström, Jan

Pages: 261-266.

DOI number: 10.3891/acta.chem.scand.41b-0261
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Articles in volume 42b (1988)

Rotational Isomerism of N,N'-Dimethyl-N,N'-diacyl-1,2-diaminoethanes and Their Thio Analogues as Studied by 1H and 13C NMR and by Molecular Mechanics.

Sandström, Jan; Simeonov, Mario; Spassov, Stefan

Pages: 183-189.

DOI number: 10.3891/acta.chem.scand.42b-0183
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Articles in volume 44 (1990)

Addition of a Twisted Diacylketene Aminal to Dimethyl Acetylenedicarboxylate. A New Spirocyclic System.

Khan, Agha Zul-Quarnain; Bergquist, Karl-Erik; Sandström, Jan

Pages: 833-836.

DOI number: 10.3891/acta.chem.scand.44-0833
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Addition of Twisted 1,1-Bis(thioacyl)-2,2-diaminoethylenes to Dimethyl Acetylenedicarboxylate. Part I. Formation of New Thiopyrone Derivatives on Reaction in Acetonitrile Containing Traces of Water.

Khan, Agha Zul-Qarnain; Sandström, Jan

Pages: 968-972.

DOI number: 10.3891/acta.chem.scand.44-0968
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Articles in volume 45 (1991)

Chromatographic Enantiomer Separation and Chiroptical Properties of 1-Acyl-2-aryl-1,2,3,4-tetrahydropyridines and Some Analogues.

Nilsson, Kristina; Hallberg, Anders; Isaksson, Roland; Sandström, Jan

Pages: 716-722.

DOI number: 10.3891/acta.chem.scand.45-0716
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Chromatographic Enantiomer Separation, Circular Dichroism Spectrum, and Absolute Configuration of the 7-Methoxycoumarin syn Head-to-Tail Dimer.

Hargitai, Tihamér; Reinholdsson, Per; Sandström, Jan

Pages: 1076-1079.

DOI number: 10.3891/acta.chem.scand.45-1076
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Articles in volume 46 (1992)

Stereochemical Studies of N,N'-Diacetyl-N,N'-dimethyl-1,2-diamino-1,2-diphenylethanes and their Mono- and Di-thio Analogues by NMR and CD Spectroscopy and by Molecular Mechanics Calculations.

Chiara, José Luis; Petrova, Rumyana; Simeonov, Mario; Spassov, Stefan L.; Khan, Agha Zul-Quarnain; Sandström, Jan

Pages: 555-562.

DOI number: 10.3891/acta.chem.scand.46-0555
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Chromatographic Enantiomer Separation and Spectroscopic Studies of a Chiral Vinylogous Thiolcarboxylate.

Khan, Agha Zul-Qarnain; Isaksson, Roland; Sandström, Jan

Pages: 897-900.

DOI number: 10.3891/acta.chem.scand.46-0897
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Articles in volume 47 (1993)

Chiral Triptycenes Owing their Chirality to Hindered Rotation of a Bridgehead Substituent. Crystal Structure, Chromatographic Enantiomer Resolution, and Circular Dichroism Spectra.

Isaksson, Roland; Oki, Michinori; Sandström, Jan; Suissa, M. Rachel; Toyota, Shinji

Pages: 570-576.

DOI number: 10.3891/acta.chem.scand.47-0570
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Articles in volume 50 (1996)

Stereochemical Studies of 1,2-Di(thio)acetamidocyclohexanes and their N,N'-Dimethyl Derivatives by NMR and CD Spectroscopy and by Molecular Mechanics Calculations.

Khan, Agha Zul-Qarnain; Ivanova, Galya I.; Spassov, Stefan L.; Sandström, Jan

Pages: 938-951.

DOI number: 10.3891/acta.chem.scand.50-0938
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