Works matching IS 0018019X AND DT 1984 AND VI 67 AND IP 1
Results: 43
Kopsirachin, ein ungewöhnliches Alkaloid aus der Apocynaceae Kopsia dasyrachis Ridl. 189. Mitteilung über organische Naturstoffe.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 237, doi. 10.1002/hlca.19840670130
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Masthead.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. fmi, doi. 10.1002/hlca.19840670101
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Zur Kenntnis des Faktors F430 aus methanogenen Bakterien: Struktur des proteinfreien Faktors.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 334, doi. 10.1002/hlca.19840670141
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Molecular Recognition in Anion Coordination Chemistry. Structure, Binding Constants and Receptor-Substrate Complementarity of a Series of Anion Cryptates of a Macrobicyclic Receptor Molecule.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 91, doi. 10.1002/hlca.19840670112
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(5 R,6 S,5′ R,6′ S)-5,6,5′,6′-Diepoxy-β,β-cartin: Sythese, Spectroskopische, chiroptische und chromatographische Eigenschaften.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 184, doi. 10.1002/hlca.19840670123
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The Halide-promoted fragmentation of 1-chloro-1-fluoro-2-(a-silylakyl))cyclopropanes: A new entry to fluorodienes.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 284, doi. 10.1002/hlca.19840670134
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Metal complexes with macrocyclic ligands. Part XIX. Synthesis and Cu<sup>2+</sup>-complexes of a series of 12-, 14- and 16-membered cis- and trans-N<sub>2</sub>S<sub>2</sub>-macrocycles.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 29, doi. 10.1002/hlca.19840670105
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Photochemical reactions. 133<sup>rd</sup> Communication. Photochemistry of epoxydienes of the ionone series: Influence of a methyl group at the diene side chain on the oxirane cleavage.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 129, doi. 10.1002/hlca.19840670116
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Molecular Ions of Transient Species: Vinyl-Alcohol Cation.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 216, doi. 10.1002/hlca.19840670127
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On the Stereochemistry of Natural Irones, Dihydroirones, and their Precursors.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 318, doi. 10.1002/hlca.19840670138
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Transition metal complexes with bidentate ligands spanning trans-positions. Part XIV. Some complexes of 2,11-bis(diphenylphosphinomethyl)benzo[ c]phenanthrene with platinum (0) and their reactivities.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 65, doi. 10.1002/hlca.19840670109
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The photooxygenation of Δ<sup>9(11)</sup>-dehydroestrone and its 3-methyl ether potochemical reactions XX. Preliminary communication.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 332, doi. 10.1002/hlca.19840670140
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On the Structure of Oxirane Molecular Cation. Preliminary Communication.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 86, doi. 10.1002/hlca.19840670111
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(6′ RS,8′ RS,2 E)- und (6′ RS,8′ SR,2 E)-3-Methyl-3-(2y,2′,6′-trimethyl-7′-oxabicyclo[4.3.0]non-9′-en-8′-yl)-2-propenal ([(5 RS,8 RS)- und (5 RS,8 SR)-5,8-Epoxy-5,8-dihydro-ionyloinden]acetaldehyd): Synthese und Röntgenstrukturanalyse
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 175, doi. 10.1002/hlca.19840670122
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2′-Nitro-2′-propen-1′-yl 2,2-Dimethylpropanoate (NPP), A Multiple Coupling Reagent.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 261, doi. 10.1002/hlca.19840670133
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C<sub>45</sub>- und C<sub>50</sub>-Carotinoide. 2. Mitteilung. Synthese von optisch aktiven acyclischen C<sub>15</sub>-Endgruppen.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 21, doi. 10.1002/hlca.19840670104
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Photochemical reactions. 132<sup>nd</sup> communication. Photochemistry of 5,6-epoxy-5,6-dihydro-7-methyl-β-ionine: Influence of a methyl group at the enone side chain on the oxirane cleavage.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 120, doi. 10.1002/hlca.19840670115
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1,6-Eliminationsreaktionen an Spirocoleonon; Charakterisierung der ersten Spiro[(methylcyclopropan)-phenanthren]-1,3-dion-Derivate.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 209, doi. 10.1002/hlca.19840670126
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Photoisomerization pathways of 8,16-methno[2.2]metacyclopane-1,9-diene. A model case for adiabatic electrocyclic ring closure in the excited singlet state.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 305, doi. 10.1002/hlca.19840670137
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Die Herzglykoside des Pfeilgiftes von Lophopetalum toxicum L OHER. 13. Mitteilung über Celastraceen-Inhaltsstoffe.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 54, doi. 10.1002/hlca.19840670108
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Loganin, loganic acid and periclymenoside, a new biosidic ester iridoid glucoside from Lonicera periclymenum L. ( Caprifoliaceae).
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 160, doi. 10.1002/hlca.19840670119
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Die Acylierung von Acetylenen mit β, γ-ungesättigten Säurechloriden. Eine neue Synthese von 5-Cyclopentenonen.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 73, doi. 10.1002/hlca.19840670110
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Die diastereomeren Mutatochrome. Trennung, absolute Konfiguration sowie chiroptische, spektroskopische und chromatographische Charakterisierung.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 170, doi. 10.1002/hlca.19840670121
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Approaches to the synthesis of cytochalasans. Part 6. Synthesis of the C(14)-C(23) subunit of cytochalasins A, B. F and desoxaphomin.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 254, doi. 10.1002/hlca.19840670132
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The Synthesis of (6 R*, 7 R*)-4-Carboxy-3-hydroxy-7-phenylacetamido-2-isooxacephem.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 18, doi. 10.1002/hlca.19840670103
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Mitteilungen - Communications.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 361, doi. 10.1002/hlca.19840670143
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Palladium-promoted Cyclization of Tetra-alkylated 1-Arylazonaphthalenes to 2-Aryl-benzo[ g]indazoles.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 113, doi. 10.1002/hlca.19840670114
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Neue Coleone und Royleanone aus Coleus somaliensis S. M OORE.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 201, doi. 10.1002/hlca.19840670125
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Reaction of alcohols and amines with diacetyldihydrofluorescein (DADF): Conversion into erythrosine-derivatives on TLC-plates by ammonia and iodine vapors.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 301, doi. 10.1002/hlca.19840670136
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The He(Iα) Photoelectron Spectra of the Perfluoroderivatives of Trisannelated Benzenes and Tetrakisannelated Cyclooctatetraenes.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 47, doi. 10.1002/hlca.19840670107
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Décomposition du percarbonate de O, O- t-butyle et O-isopropényle en solution: Acétonylation des esters, acides et nitriles.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 149, doi. 10.1002/hlca.19840670118
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Further Investigation of the Nature of the C-Li Bond. Structures of a Phenylthiomethyllithium Complex and ofa Methylthiomethyllithium Complex.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 224, doi. 10.1002/hlca.19840670129
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Über Poterinchemie. 82. Mitteilung. Bildung von Formimidoyl-Derivaten aus Aminen und Benzylisocyanid; Eine neue Umpolungsmöglichkeit für bestimmte C-Atome.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 166, doi. 10.1002/hlca.19840670120
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Synthese von Bicyclo[3.3.o]oct-1(5)en-2-on aus Cyclohexanon.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 249, doi. 10.1002/hlca.19840670131
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Alkyl Shifts between Transition Metals and Coordinated Main Group Atoms.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 1, doi. 10.1002/hlca.19840670102
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Parallelism Between Nucleophilically Solvent-Assisted and Phenyl-Assisted Reactions. Possible Existence of Nucleophilically β-Phenyl-Solvated Ion Pairs.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 352, doi. 10.1002/hlca.19840670142
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Stereochemistry of Dehydrogenation of 1,4,-Cyclohexadiene with 2,3-Dichloro-5,6-dicyano- p-benzoquinone.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 105, doi. 10.1002/hlca.19840670113
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Stereochemistry of an Ene Reaction Involving 1,7-Dienes; Bicyclo[3.3.1]nonanes from (3-Cyclohexenyl)diallylcarbinols.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 191, doi. 10.1002/hlca.19840670124
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C-Metallierte chirale Aloxide als d<sup>2</sup>- und d 3-Reagenzien für die Synthese enantiomerenreiner Produkte (EPC-Synthese).
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 289, doi. 10.1002/hlca.19840670135
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Interactions between Functional Groups. Part I. Crystal Structure of 2-Phenylethynyl- N, N-dimthlaniline at 98 K: A Remarkably Short CH ...︁ C Distance.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 39, doi. 10.1002/hlca.19840670106
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Photochemical reactions. 134<sup>th</sup> Communication. Photochemistry of 5,6-epoxy-5,6-dihydro-3,4-methano-β-ionone: Influence of a cyclopropane ring on the reactivity of an ylide intermediate.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 136, doi. 10.1002/hlca.19840670117
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Molecular Ions of Transient Species: Vinylamine-Cation.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 220, doi. 10.1002/hlca.19840670128
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On the Stereochemistry of Irones.
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- Helvetica Chimica Acta, 1984, v. 67, n. 1, p. 325, doi. 10.1002/hlca.19840670139
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