Works matching IS 0018019X AND DT 1975 AND VI 58 AND IP 2
Results: 38
Nature of the 5-norbornen-2-yl Cation Intermediate in the acetolysis of 2-deuterio- endo-5-norbornen-2-yl brosylate.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 508, doi. 10.1002/hlca.19750580220
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A stereoselective approach to cis- and trans-1,2,3,4,4,4a,5,6,8a-octahydroquinolines by intramolecular Diels- alder reactions preliminary communication.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 590, doi. 10.1002/hlca.19750580231
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Recherches dans la série de la quinoléine: Préparation et oxydation du chlorhydrate de (1-quinoléinio)acétate.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 337, doi. 10.1002/hlca.19750580202
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Synthese yon 2,6-Diencarbonsäuren Vorläufige Mitteilung.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 442, doi. 10.1002/hlca.19750580213
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Preparation and Some Properties of Maleimido Acids and maleoyl derivatives of peptides.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 531, doi. 10.1002/hlca.19750580224
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Über die «aus dem Ring»- Claisen-Umlagerung von Naphthalinderivaten.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 610, doi. 10.1002/hlca.19750580235
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Studies of Organometallic Compounds XVI. The Crystal Structure of Di-μ-ethoxy-bis(dibenzylethoxy-titanium(IV)).
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 373, doi. 10.1002/hlca.19750580206
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Biosynthesis of the Verrucarins and Roridins. Part 4. The mode of incorporation of (3R)-[(5R)-5-<sup>3</sup>H]-mevalonate into verrucarol. Evidence for the identity of the C(11)-hydrogen atom of the trichothecane skeleton with the (5R)-hydrogen atom of (3R)-mevalonic acid
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 483, doi. 10.1002/hlca.19750580217
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Eine chiral ökonomische Totalsynthese von natürlichen und unnatürlichen Prostaglandinen.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 564, doi. 10.1002/hlca.19750580228
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The Preparation of trans-N-Acyl, N-alkyl-1-amino-1,3-butadienes. Preliminary communication.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 587, doi. 10.1002/hlca.19750580230
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Masthead.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. fmi, doi. 10.1002/hlca.19750580201
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- Article
The Crystal Structure of a K<sup>+</sup> Complex of Valinomycin.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 432, doi. 10.1002/hlca.19750580212
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A Chemical Study of Burley Tobacco Flavour ( Nicotiana tabacum L.) V. Identification and Synthesis of the Novel Terpenoid Alkaloids 1, 3, 6, 6-Tetramethyl-5, 6, 7, 8-tetrahydro-isoquinolin-8-one and 3, 6, 6-Trimethyl-5,6-dihydro- 7H-2-pyrindin-7-one.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 523, doi. 10.1002/hlca.19750580223
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Azidiniumsalze 15. Mitteilung[1] Struktur-Reaktivitätsbeziehungen in Serien quartärer N-Heteroaromaten: Kinetik der Reaktion heterocyclischer Azidiniumsalze mit Cyanid-Ionen.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 605, doi. 10.1002/hlca.19750580234
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Synthèse de sucres aminés ramifiés III. Synthèse et réactions de 1′α-amino-nitrile dérivé du di-O-isopropylidène-1,2:5,6-α- D- ribo-hexofurannosul-3-ose.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 363, doi. 10.1002/hlca.19750580205
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Biosynthese der Verrucarine und Roridine. Teil 3. Der Einbau von (3 R)-[5-<sup>14</sup>C]-, [2-<sup>14</sup>C]- und an C(2) stereospezifisch tritiiertem Mevalonat in Verrucarol Verrucarine und Roridine, 29. Mitteilung.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 471, doi. 10.1002/hlca.19750580216
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Azidiniumsalze 14. Mitteilung [1] Die Reaktion des 2-Azido-3-äthyl-benzthiazolium-tetrafluoroborats mit Sulfit-Ionen: Kinetik der Bildungs-, Isomerisierungs- und Zersetzungsreaktionen des Additionsproduktes.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 596, doi. 10.1002/hlca.19750580233
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Bei der Redaktion eingelaufene Bücher.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 655, doi. 10.1002/hlca.19750580238
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- Article
A Study of Intramolecular Energy Transfer in Conformationally Rigid molecules with stereoisomerically oriented donor and acceptor groups.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 397, doi. 10.1002/hlca.19750580209
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A carbon-13 study of bis-phosphine platinum complexes.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 423, doi. 10.1002/hlca.19750580211
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Hydrazide as a Carboxyl Protecting Group deprotection by acidolysis.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 521, doi. 10.1002/hlca.19750580222
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Enäther als Reaktionspartner von Organometallen II Hydroxyäthyl-allene und andere Folgeprodukte aus Dihydrofuran-Derivaten.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 556, doi. 10.1002/hlca.19750580227
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Sur les dérivés de la fluorénone VIII. Difluorénonyl-cétones, difluorényl-cétones et difluorényl-méthanes.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 356, doi. 10.1002/hlca.19750580204
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Biosynthese der Verrucarine und Roridine. Teil 2 Der Einbau von Acetat in die cis,trans-Muconsäure und von Mevalonat in die Roridinsäure Verrucarine und Roridine, 28. Mitteilung [2].
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 453, doi. 10.1002/hlca.19750580215
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Die Kristallstruktur von 2,5-Diäthyl-7-(1-methyl-2-imidazolyl)-1 H-pyrrolo[3,4- c]pyridin-1,3,6 (2 H, 5 H)-trion.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 552, doi. 10.1002/hlca.19750580226
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Mitteilungen-Communications.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 654, doi. 10.1002/hlca.19750580237
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- Article
The Synthesis of 4b, 5, 12, 12a-Tetrahydro-5, 12-ethano-13 H-indeno[2,3- b]anthracenes, 4b, 5, 10, 10a - tetrahydro-5,10-ethano-11 H-indeno[2,3- b]naphtalenes and 1,2,3,4,4a, 9a-Hexahydro-1,4-( peri-naphthaleno)-fluorenes.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 380, doi. 10.1002/hlca.19750580208
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Fluorénacènes et fluorénaphènes Synthèses dans la série des indéno-fluorènes, XIX Dérivés tétraméthylés du trans-fluorénaphène et du trans-fluorénacène
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 503, doi. 10.1002/hlca.19750580219
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<sup>1</sup>H- and <sup>13</sup>C-NMR. Studies of the molecular conformations of cyclo-tetraglycyl [1].
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 415, doi. 10.1002/hlca.19750580210
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Improved Synthesis of O-Phosphohomoserine.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 518, doi. 10.1002/hlca.19750580221
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The Total Synthesis of (±)-Pumiliotoxin-C preliminary communication.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 593, doi. 10.1002/hlca.19750580232
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Neue spiro-Cyclopropyl-cyclohexendion-Diterpene: Coleone M, N, P, Q, R sowie Barbatusin aus Plectranthus caninus R OTH und Coleon O aus Coleus somaliensis S. M OORE.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 343, doi. 10.1002/hlca.19750580203
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Dopaldehyd: erstmalige Isolierung aus einer Pflanze in Form seines ( Z)-Enol-( E)-Kaffeesäureesters.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 447, doi. 10.1002/hlca.19750580214
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Neue Umlagerungsreaktionen des Trichothecangerüsts Verrucarine und Roridine, 31. Mitteilung [1].
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 541, doi. 10.1002/hlca.19750580225
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The Crystal and Molecular Structure of rac-15-cyano-1,2,2,7,7,12,12-heptamethyl corrin hydrochloride, metal free corrin.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 641, doi. 10.1002/hlca.19750580236
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Zur Frage der Existenz isomerer, äquatorial koordinierter 1:2-Co(III)-Komplexe aus symmetrischen o, o'-Dihydroxyazofarbstoffen.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 377, doi. 10.1002/hlca.19750580207
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Azidiniumsalze 13. Mitteilung [1] Polarographie der Azidiniumsalze substituierter Chinoline.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 488, doi. 10.1002/hlca.19750580218
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Structural and Dynamic Study of SnCl<sub>4</sub> · 2 Me<sub>2</sub>O and SnCl<sub>4</sub> · 2 Me<sub>2</sub>Se Preliminary communication.
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- Helvetica Chimica Acta, 1975, v. 58, n. 2, p. 584, doi. 10.1002/hlca.19750580229
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