Works matching IS 0018019X AND DT 1980 AND VI 63 AND IP 6
Results: 47
Benzylidène-5-hydroxy-4-dihydro-2,5-thiophènecarboxanilides-3-( Z): Synthèse et isomérisation en benzyl-5-hydroxy-4-thiophènecarboxanilides-3.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1542, doi. 10.1002/hlca.19800630623
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Über die Stereoselektivität der α-Alkylierung von (1 R, 2 S) (+)- cis-2-hydroxy-cyclohexancarbonsäureäthylester.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1383, doi. 10.1002/hlca.19800630605
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Formation of N-Hydroxy-amines of Spin Labeled Nucleosides for <sup>1</sup>H-NMR. Analysis.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1407, doi. 10.1002/hlca.19800630609
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Natural Abundance <sup>13</sup>C-NMR. of Vitamin D<sub>3</sub> Metabolites.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1609, doi. 10.1002/hlca.19800630630
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1,3-Dipolare Additionen an 7-Methylthieno[2,3- c]pyridin-1,1-dioxid.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1719, doi. 10.1002/hlca.19800630641
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Synthese von aromatischen Verbindungen mit einer prostaglandin-ähnlichen Struktur.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1425, doi. 10.1002/hlca.19800630612
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Masthead.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. fmi, doi. 10.1002/hlca.19800630601
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trans/cis Isomerization of Astaxanthin Diacetate/Isolation by HPLC. and Identification by <sup>1</sup>H-NMR. Spectroscopy of Three Mono- cis- and Six Di- cis-Isomers.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1711, doi. 10.1002/hlca.19800630640
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Heterotricyclodecane XXVII. Ein weiterer Zugang zu 2,6-Dioxatricyclo [3.3.2.0<sup>3,7</sup>]decan.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1420, doi. 10.1002/hlca.19800630611
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Dérivés de sucres à groupement gem-dihalogénoéthényle.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1644, doi. 10.1002/hlca.19800630634
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The chiral recognition of guest molecules in trio- o-thymotide clathrates: A semi-empirical approach. Preliminary communication.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1750, doi. 10.1002/hlca.19800630645
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Synthese von optisch aktiven, natürlichen Carotinoiden und strukturell verwandten Naturprodukten. VI. Synthese von Picrocrocin.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1463, doi. 10.1002/hlca.19800630616
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Synthesis of the Sesquirose Oxides from Rose Oxide.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1589, doi. 10.1002/hlca.19800630627
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The Enantioselective Synthesis of (+)-Estradiol from 1,3-Dihydrobenzo[c]thiophene-2,2-dioxide by Successive Thermal SO<sub>2</sub>-Extrusion and Cycloaddition Reactions. Preliminary communication.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1703, doi. 10.1002/hlca.19800630638
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Differential Hydrogen Exchange During Biosynthesis of Cytochalasins B and D.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1538, doi. 10.1002/hlca.19800630622
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Cob(I)alamin as Catalyst. 8th Communication. Cob(I)alamin and Heptamethyl Cob(I)yrinate During the Reduction of α,β-Unsaturated Carbonyl Derivatives.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1628, doi. 10.1002/hlca.19800630633
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Citrus-Carotinoide. 2. Mitteilung. Synthese von (3 R)-β-Citraurin, (3 R)-β-Citraurol und (3 R)-β-Citraurinin; Aufklärung der Konfiguration von Citrus-Carotinoiden.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1377, doi. 10.1002/hlca.19800630604
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Evidence for an Iminium Cation Intermediate and its Non-Oxidative Decarboxylation in a Cerium (IV)-Mediated Oxidative Decarboxylation. Preliminary communication.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1748, doi. 10.1002/hlca.19800630644
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Synthese von optisch aktiven, natürlichen Carotinoiden und strukturell verwandten Naturprodukten. V. Synthese von (3 R, 3′ R)-, (3 S, 3′ S)- und (3 R,3′ S; meso)-Zeaxanthin durch asymmetrische Hydroborierung. Ein neuer Zugang zu Optisch aktiven Carotinoidbausteinen. Vorläufige Mitteilung
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1456, doi. 10.1002/hlca.19800630615
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Synthesis of ( R)- and ( R)-4-methyl-6-2′-methylprop-1′-enyl-5,6-dihydro-2 H-pyran (Nerol oxide) and Natural Occurrence of its Racemate.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1582, doi. 10.1002/hlca.19800630626
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Synthese, spektroskopische Eigenschaften und elektrochemisches Verhalten von Ruthenium(II)-Komplexen mit zweizähnigen Stickstoffliganden.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1675, doi. 10.1002/hlca.19800630637
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Stoffwechselprodukte von Mikroorganismen. 193. Mitteilung. Ferrithiocin.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1400, doi. 10.1002/hlca.19800630608
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Reactions of oxygenated cobalt (II) complexes. XIII. Diastereoisomeric forms of μ-peroxo-μ-hydroxo-bis[bis(ethylenediamine) cobalt(III)]. Preparation, X-ray structure determination and reactivity.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1491, doi. 10.1002/hlca.19800630619
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Notizen zur Synthese von 2-Aminophenylsulfonen.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1412, doi. 10.1002/hlca.19800630610
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Photochemische Reaktionen. 110. Mitteilung [1]. Zur Photochemie γ,δ-Methano-α-enone.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1520, doi. 10.1002/hlca.19800630621
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Cob(I)alamin als Katalysator. Retention der Konfiguration bei der reduktiv-protonenübertragenden Spaltung der Co, C-Bindung eines Alkylcobalamins. 7. Mitteilung [1].
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1619, doi. 10.1002/hlca.19800630632
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1,2-Epoxy-Carotinoide. 1. Mitteilung. Synthese von 1,2-Epoxy-lycopin und 1,2,1′,2′-Diepoxy-lycopin.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1367, doi. 10.1002/hlca.19800630603
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Etude par spectrométrie de masse de la fragmentation du désoxy-3-di- O-isopropylidène-1,2: 5,6-méthylidène-3-α- D-hexofurannose et de quelques analogues substitués en C(3′).
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1740, doi. 10.1002/hlca.19800630643
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Synthese von optisch aktiven, natürlichen Carotinoiden und strukturell verwandten Naturprodukten. IV. Synthese von (3 R, 3′ R, 6′ R)-Lutein. Vorläufige Mitteilung.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1451, doi. 10.1002/hlca.19800630614
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Steroide und Sexualhormone. 261. Mitteilung. Quassinoide Bitterstoffe II. Partialsynthetischer Zugang zu Quassin: Überführung von Testosteron in eine Schlüsselverbindung mit angulärer 8β-Methylgruppe.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1562, doi. 10.1002/hlca.19800630625
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The Synthesis of β,γ- and α,β-Unsaturated Aldehydes via Polyene Epoxides.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1665, doi. 10.1002/hlca.19800630636
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Synthese und Eigenschaften von 6-Desoxy-6-halogen-Derivaten der L-Ascorbinsäure.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1728, doi. 10.1002/hlca.19800630642
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Selectivity of Intramolecular Radical Addition Reactions Cyclization of ω-Alkenyl Radicals.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1434, doi. 10.1002/hlca.19800630613
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Steroide und Sexualhormone. 260. Mitteilung. Limonoide Bitterstoffe V. Untersuchungen zur Stereochemie der C(8)-Alkylierung von 7-Oxo-13,17-secosteroiden.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1554, doi. 10.1002/hlca.19800630624
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Retro-Aldol Reaction of Retinylidene-1,3-Diketones; Correlation with Biological Activity.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1396, doi. 10.1002/hlca.19800630607
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Beitrag zur Analytik und Synthese von 3-Hydroxy-4-oxocarotinoiden.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1654, doi. 10.1002/hlca.19800630635
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Synthese von optisch aktiven, natürlichen Carotinoiden und strukturell verwandten Naturprodukten. VIII. Synthese von (3 S,3′ S)-7,8,7′,8′-Tetradehydroastaxanthin und (3 S,3′ S)-7,8-Didehydroastaxanthin (Asterinsäure)
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1473, doi. 10.1002/hlca.19800630618
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Mitteilungen.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1759, doi. 10.1002/hlca.19800630647
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Synthese bicyclischer Retinoide aus Retinsäure.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1604, doi. 10.1002/hlca.19800630629
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Photochemische Reaktionen. 109. Mitteilung [1]. Zur Photochemie konjugierter δ-Keto-enone und β,γ,δ,ϵ-ungesättigter Ketone.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1499, doi. 10.1002/hlca.19800630620
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Synthese von Nucleosiden aus 2-substituierten Imidazolen.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1353, doi. 10.1002/hlca.19800630602
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Two New Sesquiterpenoid Ketones from Cassia Oil.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1615, doi. 10.1002/hlca.19800630631
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Oxidation Products of Retinylidene Dimedone.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1391, doi. 10.1002/hlca.19800630606
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Über Pterinchemie. 74. Mitteilung. Zum Verlauf der katalytischen Reduktion von 6-Methylpterin.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1754, doi. 10.1002/hlca.19800630646
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Synthese von optisch aktiven, natürlichen Carotinoiden und strukturell verwandten Naturprodukten. VII. Synthese von (3 R)-3-Hydroxyretinol, (3 R)-3-Hydroxyretinal und (3 R)-3-Hydroxyretinsäure.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1467, doi. 10.1002/hlca.19800630617
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Synthesis of Enantiomeric 3-Oxa-analogues of cis-Rose Oxide and of Some Sesquiterpenoid Homologues.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1598, doi. 10.1002/hlca.19800630628
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Stereoselective total syntheses of (±)-chanoclavine I and (±)-isochanoclavine I by an intramolecular nitrone-olefin/cycloaddition. Preliminary communication.
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- Helvetica Chimica Acta, 1980, v. 63, n. 6, p. 1706, doi. 10.1002/hlca.19800630639
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