Works matching IS 0018019X AND DT 1991 AND VI 74 AND IP 7
Results: 23
Deoxy-nitrosugars. 17th communication. Synthesis of ketose-derived nucleosides from 1-deoxy-1-nitroribose.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1555, doi. 10.1002/hlca.19910740719
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- Article
1,2-Stereoinduction in Radical Reactions: Stereoselective Synthesis of 2-Alkyl-3-hydroxybutanoates.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1600, doi. 10.1002/hlca.19910740722
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Mammalian alkaloids: Synthesis and O-methylation of ( S)- and ( R)-3′-hydroxycoclaurine and their N-methylated analogues with S-adenosyl- L-[ methyl-<sup>14</sup>C]methionine in presence of mammalian catechol O-methyltransferase.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1399, doi. 10.1002/hlca.19910740704
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The Reaction of 1,2:3,4-Diepoxy-2,3-dimethylbutane with Nucleophiles.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1511, doi. 10.1002/hlca.19910740715
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The chemistry of coumarin derivatives. Part 3. Synthesis of 3-alkyl-4-hydroxycoumarins by reductive fragmentation of 3,3′-alkyiidene-4,4′-dihydroxybis[coumarins].
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1451, doi. 10.1002/hlca.19910740708
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Ruthenium(II) Complex of the Alkaloid 2-Bromoleptoclinidinone. Preparation and Interaction with Double-Stranded DNA.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1471, doi. 10.1002/hlca.19910740711
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Fluxional Behaviour of Isocyanide Derivatives of Dodecacarbonyltetrairidium.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1464, doi. 10.1002/hlca.19910740710
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Crystal Structure and ESR Study of a Bimetallic Copper/Iron Crown Ether Inclusion Complex.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1591, doi. 10.1002/hlca.19910740721
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Regioselektive 1,3-dipolare Cycloadditionen von Thiocarbonyl-yliden mit 1,3-Thiazol-5(4 H)-thionen.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1386, doi. 10.1002/hlca.19910740703
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1,3-Oxathiolan-Synthese: Spirocyclische 1,3-Oxathiolane aus der Lewis-Säure-katalysierten Umsetzung von cyclischen Trithiocarbonaten und Oxiranen.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1500, doi. 10.1002/hlca.19910740714
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- Article
A Novel, Degraded Polyketidic Lactone, Leptosphaerolide, and Its Likely Diketone Precursor, Leptosphaerodione. Isolation from Cultures of the Marine Ascomycete Leptosphaeria oraemaris (L INDER).
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1445, doi. 10.1002/hlca.19910740707
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Über Pterinchemie. 90. Mitteilung. Synthese und Kristallstruktur des ersten chinoiden Dihydropterinmolybdän (IV)-Komplexes.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1544, doi. 10.1002/hlca.19910740718
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Approaches to the synthesis of cytochalasans. Part 10. Cuprates as reagents for the formation of CC bonds.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1585, doi. 10.1002/hlca.19910740720
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Dipeptide Derivatives with a Phosphonate Instead of Carboxylate Terminus by C-Alkylation of Protected (Decarboxy-dipeptidyl)phosphonates.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1373, doi. 10.1002/hlca.19910740702
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Der 'Push-Pull'-Effekt von 'Push-Pull'-Oligoacetylenen. Eine <sup>13</sup>C-NMR-Untersuchung.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1489, doi. 10.1002/hlca.19910740713
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Asymmetric Catalysis by Vitamin B<sub>12</sub>. The Mechanism of the Cob(I)alamin-Catalyzed Isomerization of 1,2-Epoxycyclopentane to ( R)-Cyclopent-2-enol.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1425, doi. 10.1002/hlca.19910740706
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2D-NMR ConformationaL Studies of ChiraL Functionalized Ferrocenylphosphine Ligands for the Gold(I)-Catalyzed Aldol Reaction.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1533, doi. 10.1002/hlca.19910740717
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Masthead.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. fmi, doi. 10.1002/hlca.19910740701
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Chiral Acylsilanes in Organic Synthesis. Diastereoselective 1,2-Additions to Racemic Alkoxymethyl-Substituted Acylsilanes.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1477, doi. 10.1002/hlca.19910740712
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Mitteilungen.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1608, doi. 10.1002/hlca.19910740723
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- Article
Photo-oxygenation of Styrenic Estrogens: Structural Analysis of 8,9-Didehydro-, 6,7-Didehydro-, and 9,11-Didehydroestrone Derivatives and Their Reactivity towards Singlet Oxygen.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1412, doi. 10.1002/hlca.19910740705
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C-Glykoside der N-Acetylneuraminsäure. Synthese und Untersuchung ihrer Wirkung auf die Vibrio cholerae Sialidase.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1520, doi. 10.1002/hlca.19910740716
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Synthesis, structure, and reactivity of secosteroids containing a medium-sized ring. Part 32. Conformations and photochemical reactivity of some unsaturated 5,10-secosteroidal ketones.
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- Helvetica Chimica Acta, 1991, v. 74, n. 7, p. 1459, doi. 10.1002/hlca.19910740709
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