Works matching IS 0018019X AND DT 1971 AND VI 54 AND IP 1
Results: 44
Rapid Syntheses of Hexa and Heptahelicene.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 358, doi. 10.1002/hlca.19710540140
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Studies on Solubilization. (Part I). Note on the synthesis of some quaternary N-(ω-aryloxyalkyl) piperidinium, pyridinium, benzyl-dimethyl-ammonium, and trimethyl-ammonium bromides.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 112, doi. 10.1002/hlca.19710540111
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Höhere, kondensierte Ringsysteme. 6. Mitteilung [1]. NBS-Dehydrierungen an 9,10-Dihydrophenanthrensystemen Synthese von [2<sup>3</sup>] (2,7) Phenanthrenophan-trien.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 266, doi. 10.1002/hlca.19710540122
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Über den Verteilungssatz der Auxochrome bei Azokörpern, II Dihydroxy-azobenzole.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 335, doi. 10.1002/hlca.19710540133
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Über die Struktur eines neuartigen Indolalkaloids, des Talbotins. 141. Mitteilung über Alkaloide [1].
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 15, doi. 10.1002/hlca.19710540104
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Mitteilungen.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 422, doi. 10.1002/hlca.19710540144
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Der Mechanismus der Hydrolyse von Chlortriazinen in protischen Lösungsmitteln. II. Mitteilung Über nukleophile uromatische Substitutionen.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 163, doi. 10.1002/hlca.19710540115
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Über Ketoxime der 9,10-Dihydro-4H-benzo[4,5]cyclohepta[1,2-b]thiophene und ihre Umlagerungen zu 4,5,10,11-Tetrahydro-benzothienoazocinen. Untersuchungen über synthetische Arzneimittel, 18. Mitteilung [1].
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 283, doi. 10.1002/hlca.19710540126
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Préparation de quelques dérivés du nitro-5-thiophénecarbaldéhyde-2.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 351, doi. 10.1002/hlca.19710540137
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Crystallographic Studies of Synthetic Corrinoids. I. Nickel(II)-1, 8, 8, 13, 13-pentamethyl-5-cyano- trans-corrin chloride.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 77, doi. 10.1002/hlca.19710540108
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Komplexone VL. Reaktionsenthalpie und -entropie bei der Bildung der 1 : 1-Komplexe der Seltenen Erdionen mit 1,3-Diaminopropan-N, N, N′, N′-tetraacetat.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 216, doi. 10.1002/hlca.19710540119
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Crystallographic Studies of Synthetic Corrinoids. III. Structural similarities and differences between A/D-seco-corrinoid complexes of divalent nickel, palladium and platinum.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 98, doi. 10.1002/hlca.19710540110
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Die Komplexe der Hexamine «penten» und «ptetraen» Thermodynamik ihrer Bildung in wässeriger Lösung.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 243, doi. 10.1002/hlca.19710540121
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Über den Verteilungssatz der Auxochrome bei Azokörpern, I. Di- und Tetramethoxy-xobenzole.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 330, doi. 10.1002/hlca.19710540132
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Reduction of 6-Trichloromethyl-2-pyrones with Metal Hydrides and with Zinc.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 6, doi. 10.1002/hlca.19710540103
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Die Synthese von Insulinfragmenten mit intakter interchenarer Disulfidbrücke A<sup>20</sup>-B<sup>19</sup>.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 398, doi. 10.1002/hlca.19710540143
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The Interaction of π-Orbitals in Barrelene.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 153, doi. 10.1002/hlca.19710540114
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Beiträge zur Chemie des 4,5-Dihydro-10 H-benzo [5, 6]cyclohepta[1,2- b]thiophens.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 277, doi. 10.1002/hlca.19710540125
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Préparation de quelques dérivés de l'acétylamino-5-thiophénecarbaldéhyde-2 per Bernard Miche de Malleray.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 343, doi. 10.1002/hlca.19710540136
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An Estimate of the Interatomic Distances in Monohaloacetylene Radical Cations from Photoelectron-spectroscopic Data.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 58, doi. 10.1002/hlca.19710540107
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Autumnariol und Autumnariniol, zwei neue Dibenzo-α-pyrone aus Eucomis autumnalis Graeb. Nachweis einer Fernkopplung über sechs Bindungen in den magnetischen Protonenresonanz - Spektren.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 207, doi. 10.1002/hlca.19710540118
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Die Ermittlung von realen Gefügezuständen mit Hilfe der technologischen Kalorimetrie - Aussagemöglichkeiten üblicher Abkühlungskurven. Vorläufige Mitteilung.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 303, doi. 10.1002/hlca.19710540129
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<sup>13</sup>C-, <sup>14</sup>N- und <sup>1</sup>H-kernresonanzspektroskopische Untersuchungen an m-/ p-substuierten N-Methylpyridiniumjodiden.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 229, doi. 10.1002/hlca.19710540120
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Absolute Konfiguration von δ-Carotin aus der Tomatenmutante Del/Del 65-3-54-5.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 327, doi. 10.1002/hlca.19710540131
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Ligandenverdrängungsreaktionen von Kobalt-dicyclopentadienyl mit tertiären Phosphiten - Darstellung und Eigenschaften der Komplexe C<sub>5</sub>H<sub>5</sub>Co[P(OR)<sub>3</sub>]<sub>2</sub>.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 1, doi. 10.1002/hlca.19710540102
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Zur Photochemie des Caryophyllens und des iso-Caryophyllens Umlagerungen ihrer 1,5-Diensysteme nach direkter π,π*-Anregung in flüssiger Phase.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 370, doi. 10.1002/hlca.19710540142
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Die Koordinationszahl von Lanthaniden: Thermodynamik der Ln<sup>III</sup>EDTA-Mischkomplexe mit den Anionen der 8-Hydroxychinolin-5-sulfonsäure, Iminodiessigsäure und Nitrilotriessigsäure.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 135, doi. 10.1002/hlca.19710540113
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Organische Phosphorverbindungen 44 Darstellung und Eigenschaften von Bis-(ß-chloräthyl)-phosphinsäure-Derivaten [1].
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 275, doi. 10.1002/hlca.19710540124
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Base-Catalysed H-D Exchange in 1 -Methylthiolanium Iodide.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 341, doi. 10.1002/hlca.19710540135
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Die Kristallstruktur der 2,4, 6-Trimethylpimelinsäuren 1. Mitteilung.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 51, doi. 10.1002/hlca.19710540106
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Pyrolysen- und Hydrierungsversuche in der Elemol- und Dihydrogeijeren-Reihe.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 183, doi. 10.1002/hlca.19710540117
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Stereoselective Effects in Reactions of Metal Complexes, II selectivity in the complex formation of nickel(II)-, copper(II)-and zinc(II)-( D)-propylenediaminetetraacetate with racemic 1-phenylethyl-amine [1].
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 297, doi. 10.1002/hlca.19710540128
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An Efficient Synthesis of Thyrotropin Releasing Hormone (TRH).
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 355, doi. 10.1002/hlca.19710540139
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Thermisches Verhalten von Cyclopropa[ c]chromenen.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 306, doi. 10.1002/hlca.19710540130
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Masthead.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. fmi, doi. 10.1002/hlca.19710540101
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ESR. Spectra of the Radical Anions of Cycloalkylbenzenes.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 361, doi. 10.1002/hlca.19710540141
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Über siliciumaromatische Verbindungen. III. Trimethylsilyl- und Triphenylsilyl-substituierte Farbstoffe der Anthrachinonreihe.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 117, doi. 10.1002/hlca.19710540112
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Pyrolysis of N-Sulfinylaniline Microwave Detection of the SO Molecule. Preliminary communication.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 273, doi. 10.1002/hlca.19710540123
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Über den Verteilungssatz der Auxochrome bei Azokörpern, III Azokörper mit zueinander p-ständigen Auxochromen.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 338, doi. 10.1002/hlca.19710540134
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Stoffwechselprodukte von Mikroorganismen. 89. Mitteilung [1]. Synthese von zwei diastereomeren 2, 4, 6-Trimethylpimelinsäuren. Ein Beitrag zur Stereochemie des Borrelidins.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 44, doi. 10.1002/hlca.19710540105
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The <sup>35</sup>Cl Nuclear Quadrupole Resonance Frequencies of Complexes of Boron Trichloride.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 176, doi. 10.1002/hlca.19710540116
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Die molekulare und kristalline Struktur von 9,10-Dihydro-4-(3-dimethylamino-propyliden)-4 H-benzo[4,5] cyclohepta[1,2- b]thiophen-hydrochlorid. Untersuchungen über synthetishe Arzneimittel, 19. Mitteilung [1].
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 293, doi. 10.1002/hlca.19710540127
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Note sur la préparation de l'acétylamino-5-acéty-2-thiophène.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 353, doi. 10.1002/hlca.19710540138
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Crystallographic Studies of Synthetic Corrinoids. II. Molecular structure of a C/D-seco-corrinoid nickel(II) complex.
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- Helvetica Chimica Acta, 1971, v. 54, n. 1, p. 90, doi. 10.1002/hlca.19710540109
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