Works matching IS 0018019X AND DT 1972 AND VI 55 AND IP 2
Results: 48
Biosynthesis of Betalaines. On the Cleavage of the Aromatic Ring during the Enzymatic Transformation of Dopa into Betalamic Acid.
- Published in:
- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 649, doi. 10.1002/hlca.19720550240
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- Article
Stereochemical Assignment of the Two Isomeric Tropine N-Oxides by Proton Magnetic Resonance at 220 MHz.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 637, doi. 10.1002/hlca.19720550238
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- Article
Die Umwandlung von Penicillinen in Cephalosporine. Modifikationen von Antibiotika, 3. Mitteilung.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 388, doi. 10.1002/hlca.19720550209
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- Article
Neue β-Lactamsysteme aus Penicillinen. Modifikationen von Antibiotika, 5. Mitteilung [1].
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 417, doi. 10.1002/hlca.19720550211
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- Article
Myrochromanol und Myrochromanon, zwei weitere Metaboliten von Myrothecium roridum Tode ex Fr. Verrucarine und Roridine, 25. Mitt.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 510, doi. 10.1002/hlca.19720550222
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- Article
Acidity Constants of the Thienyl- and Phenyl-Pyridines and Stability Constants of the Corresponding Copper (II) 1:1 Complexes.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 610, doi. 10.1002/hlca.19720550233
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10(5→4)- abeo-Corticosteroide. Über Steroide, 224. Mitteilung.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 338, doi. 10.1002/hlca.19720550204
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- Article
The Gas-Phase Thermal Decomposition of 5-Ethyl-1-pyrroline.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 680, doi. 10.1002/hlca.19720550244
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- Article
Voacanǵa-Alkaloide VII. Desoxovobasin.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 446, doi. 10.1002/hlca.19720550215
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- Article
The Crystal and Molecular Structures of an Unusual Estra-Steroid and of its Dihydroproduct.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 544, doi. 10.1002/hlca.19720550226
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- Article
The Conformation and Chirality of α-Diketones.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 634, doi. 10.1002/hlca.19720550237
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- Article
Elektrocyclischer Ringschluss als Nebenreaktion bei einer Wolff-Kishner-Reduktion. Über Steroide, 227. Mitteilung.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 381, doi. 10.1002/hlca.19720550208
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Mitteilungen.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 740, doi. 10.1002/hlca.19720550248
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- Article
Heterotricyclodecane. VII. 2,7-Dithia-isotwistan und Derivate.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 481, doi. 10.1002/hlca.19720550219
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- Article
Neue β-Lactam-Antibiotika. Über die Darstellung der «7-Aminocephalocillansäure». Modifikationen von Antibiotika, 4. Mitteilung [1].
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 408, doi. 10.1002/hlca.19720550210
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- Article
Der zweistufige Carbanion-Mechanismus der Fragmentierung von 3-Aminopropylbenzoaten. Fragmentierungs-Reaktionen. 25. Mitteilung.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 501, doi. 10.1002/hlca.19720550221
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- Article
Sigmatropic Reactions in Carbanions. I. The 5, 6-dihydro-2H-pyran-2-ide cyclopropyl-enolate rearrangement.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 594, doi. 10.1002/hlca.19720550232
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- Article
Herr Professor Dr. Albert Wettstein. Zum 65. Geburtstag.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 328, doi. 10.1002/hlca.19720550203
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The HCL-Catalyzed Stereomutation of Cyclic Sulfoxides.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 675, doi. 10.1002/hlca.19720550243
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- Article
Stoffwechselprodukte von Mikroorganismen. 104. Mitteilung [1]. Die Struktur des Cinerubins B.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 467, doi. 10.1002/hlca.19720550218
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Massenspektrometrische Untersuchungen von Naturprodukten; Cardenolide.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 531, doi. 10.1002/hlca.19720550225
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- Article
Notiz über die Massenspektren cyclischer Ketale.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 630, doi. 10.1002/hlca.19720550236
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- Article
Die Kristallstruktur des 3β-Acetoxy-17α-jod-Δ<sup>5</sup>-androstens.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 375, doi. 10.1002/hlca.19720550207
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Paul Karrer 1889-1971.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 313, doi. 10.1002/hlca.19720550202
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- Article
Über tribenzylierte D-Gluco- und D-Galaktopyranoside. 2. Mitteilung über verätherte Kohlenhydrate.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 434, doi. 10.1002/hlca.19720550214
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- Article
Über Pterinchemie. 40. Mitteilung [1]. Weiterer Beitrag zur Synthese des Biopterins.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 570, doi. 10.1002/hlca.19720550229
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Strukturaufklärung organischer Verbindungen durch computerunterstützten Vergleich spektraler Daten.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 489, doi. 10.1002/hlca.19720550220
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Composés d'addition des halogénures de niobium(V) et de tantale(V). V. Stabilité relative des composés des chlorures avec quelques oxydes et sulfures organiques.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 580, doi. 10.1002/hlca.19720550231
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Zur Reaktionsweise von Enaminen mit Cyclopropenonen I. Einsatz von Cyclododecanon-Enamin.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 702, doi. 10.1002/hlca.19720550247
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- Article
Über Pyrrolizidinchemie. 11. Mitteilung [1]. Totalsynthese von (±)-Platynecin.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 670, doi. 10.1002/hlca.19720550242
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- Article
Eine neue Amidinsynthese mit Hilfe der Grignard-Reaktion. 7. Mitteilung über Grignard-Reaktionen [1].
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 430, doi. 10.1002/hlca.19720550213
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- Article
Intramolekulare Diels-Alder-Additionen in 6-Methyl-6-(penta-2,4-dienyl)-cyclohexa-2,4-dien-1-on-Systemen. Vorläufige Mitteilung.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 526, doi. 10.1002/hlca.19720550224
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Formation and dissociation mechanism of amide complexes III. Water substitution as the rate limiting factor for the interconversion of Cu<sup>2+</sup> complexes with neutral and deprotonated amide groups.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 623, doi. 10.1002/hlca.19720550235
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Reaktionen von Steroid-Hypojoditen X. Fragmentierung von 20-Hydroxy-Steroiden (17-Jod-androstane). Über Steroide, 226. Mitteilung.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 366, doi. 10.1002/hlca.19720550206
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Aktivierungsanalytische Bestimmung von seltenen Erden in Gesteinsstandards und in Mondproben.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 697, doi. 10.1002/hlca.19720550246
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- Article
Stoffwechselprodukte von Mikroorganismen. 103. Mitteilung [1]. Zur Stereochemie des Lankamycins.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 460, doi. 10.1002/hlca.19720550217
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- Article
Hetarylnitrenes V. Reactions of Tetrazolopyrazine Ring Contraction of Nitrenodiazines in Solution. Preliminary communication.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 565, doi. 10.1002/hlca.19720550228
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- Article
On the Mechanism of Decarboxylation of Betanidine. A Contribution to the Interpretation of the Biosynthesis of Betalaines.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 642, doi. 10.1002/hlca.19720550239
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- Article
Uber Pterinchemie. 41. Mitteilung [1]. Eine neue Synthese von D, L-Biopterin.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 574, doi. 10.1002/hlca.19720550230
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Masthead.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. fmi, doi. 10.1002/hlca.19720550201
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- Article
Intramolekulare Übertragung von elektronischer Anregungsenergie in Spiroverbindungen.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 658, doi. 10.1002/hlca.19720550241
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1-Substituierte Cycloheptatrienverbindungen.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 553, doi. 10.1002/hlca.19720550227
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Neue β-Lactam-Antibiotika. Über die Darstellung von N-Acylderivaten der 7-Amino-ceph-3-em-4-carbonsäure. Modifikationen von Antibiotica, 6. Mitteilung [1].
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 423, doi. 10.1002/hlca.19720550212
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Utilisation d'ylides du phosphore en chimie des sucres, X. Synthèse stéréospécifique de l'épimère en C3 du streptose et d'autres sucres ramifiés, dérivés de désoxy-5-pentoses, à groupements gem-hydroxy-formyle ou gem-hydroxy-hydroxyméthyle
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 613, doi. 10.1002/hlca.19720550234
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Eine neuartige radikalinduzierte intramolekulare Gruppenübertragung. Synthese von 18-Cyan-corticosteroiden. Über Steroide, 225. Mitteilung.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 356, doi. 10.1002/hlca.19720550205
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Hydroxyalkylierung von Bishydantoinen und Bisdihydrouracilen mittels Epoxiden.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 686, doi. 10.1002/hlca.19720550245
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Eine neue Synthese des Antibioticums Pyrrolnitrin.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 451, doi. 10.1002/hlca.19720550216
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Untersuchungen über Enzymaktivitäten der Leberzelle bei Vitamin-E-Mangel.
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- Helvetica Chimica Acta, 1972, v. 55, n. 2, p. 519, doi. 10.1002/hlca.19720550223
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