bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analyse des parties acides de l'essence de bergamote saponifiée
Authors: Sundt E. , Willhalm B. , Stoll M. 
Published: December 2004

AbstractAnalysis of the acid‐lactonic parts of bergamot oil (Citrus bergamia, RISSO, from Calabria, Italy) yb chromatographic (Column, thin‐layer, paper, vapour phase) and spectrometric (mass, NMR., IR., UV.) methods has confirmed previous resuits and in addition revealed the presence of cis and trans jasmone, dihydrojasmone, cis and trans 5‐octen‐2‐one, the following saturated fatty acids : octanoic, nonanoic, decanoic, undecanoic, hexadecanoic, octadecanoic, eicosanoic, tetracosanoic, small quantities of docosanoic, tricosanoic, pentacosanoic, hexacosanoic acid, and two unsaturated acids : 9‐octadecenoic and 9,12‐octadecadienoic. We have further identified cis geranic acid, possibly trans‐ and dihydrogeranic acid.
Deuteronen‐Kernresonanzspektroskopie
Authors: Diehl P. , Leipert Th. 
Published: December 2004

AbstractIn order to be detectable, the volume concentration of chemically equivalent deuterons has to exceed a certain minimum limit. As this volume concentration decreases with increasing molecular volume, deuteron NMR. at natural abundance is limited to small molecules and therefore of no practical importance. (At a density of 1 the molecular weight has to be less than 20 per chemically equivalent deuteron.)In fully deuterated samples the signal‐to‐noise ratio is of the same order of magnitude as for protons, because the loss in sensitivity can be compensated by an increased volume of the sample.
Zur Darstellung von Tetrahydropyran‐ und Tetrahydrofuran‐derivaten aus 1,7‐ bzw. 1,6‐Allyldiolen durch Dehydratation in der Allylstellung
Authors: Ohloff G. , Schulte‐Elte K.‐H. , Willhalm B. 
Published: December 2004

AbstractA general method is described for the preparation of isoprenoid cyclic ethers by prototropic dehydration of the corresponding allyl‐l,7‐ or allyl‐l,6‐diols in the ally1 position. The formation of cyclic hydroxy ethers takes place from the corresponding epoxyallylalcohols by an analogous reaction.
Sur la saramycétine (= X‐5079 C), polypeptide antibiotique de Streptomyces saraceticus. I. Premières données concernant sa structure
Authors: Baudet P. , Cherbuliez E. 
Published: December 2004

AbstractHydrolysis by strong hydrochloric acid degrades the antibiotic Saramycetin (= X‐5079 C), discovered by BERGERet al. [l], with production of different sulphur‐free amino acids and of two types of sulphur containing compounds: (a) large amounts of cystine (23 mol. for a molecular weight of 14000 for saramycetin) originated from at least 46 cysteinogenetic groups which are shown to be probably thiazolidinic;(b) acids containing heterocyclic sulphur, for which the name of saramycetic acids is proposed and which do not yield cystine by hydrolysis.
Die Konformation des Bicyclo [3.3.1] nonan‐Systems. I. Strukturanalyse des 3‐Azabicylo [3.3.1] nonan‐hydrobromids
Authors: Dobler M. , Dunitz J. D. 
Published: December 2004

AbstractThe crystal structure of 3‐azabicyclo[3.3.1] Llnonane hydrobromide has been established by analysis of three‐dimensional X‐ray diffraction data. The crystals are tetragonal, a = 14.01 Å, c = 9.43 Å, z = 8, space group P4q2, c. The organic cation has a chair‐chair conformation in which the bond angles deviate somewhat from their ideal values, presumably because Qf steric repulsion between a pair of non‐bonded hydrogen atoms.
Ringerweiterungen bei Reaktionen von 2‐[N‐Methyl‐pyrrolidinyl‐(2)]‐1‐chlor‐äthan und 2‐[N‐Methyl‐poperidyl‐(2)]‐1‐chlor‐äthan mit nucleophilen Reagenzien. Untersuchungen über synthetische Arzneimittel, 13. Mitteilung
Authors: Ebnöther A. , Jucker E. 
Published: December 2004

AbstractWith nucleophilic reagents the γ‐aminoalkyl halides 2‐[N‐methyl‐pyrrolidinyl‐(2)]‐ and 2‐[N‐methyl‐piperidyl‐(2)]‐1‐chloro‐ethane (I and XVII) give, in addition to the normal reaction products, isomers having a ring expanded by two C‐atoms. As intermediates quaternary azetidinium ions are formed which are attacked by the nucleophilic reagent with opening of a C‐N bond of the azetidine ring. In this way, pyrrolidine and hexahydroazepine derivatives are formed from I with about equal probability, whereas XVII preferentially gives six‐membered ring compounds.
Massenspektrometrie und ihre Anwendung auf Strukturelle und stereochemische Probleme. LII. Vinca‐Alkaloide, 28. Mitteilung. Über die Struktur und massenspektrometrische Fragmentierung von Vindolinin
Authors: Djerassi C. , Cereghetti M. , Budzikiewicz H. , Janot M. M. , Plat M. , Le Men J. 
Published: December 2004

AbstractPar oxydation de l'un ou l'autre des groupements méthylhe adjacents à l'azote Nb, la N‐formyl‐dihydro‐vindolinine conduit à deux lactames IV et V. L'obtention de la γ‐lactame IV indique la positin d'attachment du pont (C 20‐C 11) et fixe la structure I de la vindolinine.
Fluoreszenzenzmethoden zur histochemischen Sichtbarmachung von Monoaminen. 2.. Identifizierung des fluoreszierenden Produktes aus Dopamin und Formaldehyd
Authors: Corrodi H. , Hillarp N. Å. , Euw J. V. , Reichstein T. 
Published: December 2004

AbstractCatecholamines are readily converted into highly fluorescent products by treatment with formaldehyde gas, under the condition that the reaction takes place in a dry protein containing layer. The reaction, which has been found to be catalyzed by some amino‐acids and peptides, has been studied by examination of the products formed especially from dopamine [β‐(3,4‐dihydroxyphenyl)‐ethylamine] in serum albumin layers.
Zur Struktur der ATP.‐Komplexe zweiwertiger Kationen IV. Koordinative Besetzung des Adeninrings
Authors: Schneider P. W. , Brintzinger H. , Erlenmeyer H. 
Published: December 2004

AbstractIn aqueous solutions of ATP‐complexes of some bivalent alkaline earth and 3d transition metal ions the degree of co‐ordination between metal ion and adenine ring has been estimated from UV. Difference spectra. In Ca‐ATP, Mg‐ATP, Mn‐ATP, Co‐ATP, Ni‐ATP and Zn‐ATP only a low percentage of the complex molecules show co‐ordination between metal ion and adenine ring, whereas in Cu‐ATP complex particles with metal‐adenine co‐ordination predominate.
Glaselektroden‐Messkette mit Isothermenschnittpunkt bei pH = 7,0 zur pH‐Messung unter extremen Bedingungen [1]
Authors: Wegmann Dorothée , Simon W. 
Published: December 2004

AbstractGlass reference electrode assemblies are described having an EMF of zero mV at pH = 7.0, independant of the temperature. The assemblies can be used for pH determinations under extreme conditions of temperature.
Synthèse de nouvelles phényl‐1‐triazolines‐ 1,2,4‐ones‐5 substituées en 3 1re communication
Authors: Gold‐Aubert Ph. , Melkonian D. , Toribio L. 
Published: December 2004

AbstractWe describe a new process of preparation of 1,2,4‐triazol‐5‐ones substituted in position 3, by condensing ureides with phenylhydrazine, with or without solvent. The characteristics of 11 substances are given, as well as 3 infra‐red spectra.
Fulven
Authors: Meuche Doris , Neuenschwander M. , Schaltegger H. , Schlunegger H. U. 
Published: December 2004

AbstractFulvene has been prepared by condensing cyclopentadiene with formaldehyde at −15° using sodium ethylate as a base. UV.‐, IR.‐, NMR.‐ and mass spectra as well as polarographic half‐wave potentials have been recorded.
Etude de structures peptidiques à l'aide du phénylisothiocyanate VI[1]. Chromatographie sur couche mince de phénylthiohydantoïnes dérivées d'acides aminés
Authors: Cherbuliez Emile , Baehler Br. , Rabinowitz J. 
Published: December 2004

AbstractTwo substrates, hydrated silica gel and alumina, have been used to separate phenylthiohydantoines derived from amino acids, using thin layer chromatography.
Zur Kenntnis der sogenannten «Alkalicarbonyle» IV [1]. Über die Reaktion von geschmolzenem Kalium mit Kohlenmonoxid
Authors: Büchner W. , Weiss E. 
Published: December 2004

AbstractThe reaction between molten potassium and carbon monoxide (without solvent) has been studied. The reaction products obtained have been shown to be a mixture of potassium acetylenediolate, an organometallic compound, and the potassium salt of hexahydroxybenzene, the relative amounts of which vary with temperature. At reaction temperatures near the melting point of potassium (62,3°), potassium acetylenediolate and the organometallic compound are the major products, whereas at temperatures higher than 180° the potassium salt of hexahydroxybenzene predominates.
Über die Struktur des Chartreusins I
Authors: Simonitsch E. , Eisenhuth W. , Stamm O. A. , Schmid H. 
Published: December 2004

Abstract
Die Experimente, die zur Aufstellung der Strukturformel IV fur das Aglykon aus dem Antibiotikum Chartreusin geführt haben, werden beschrieben.
STERNBACH, KAISER & GOLDBERG [2] haben seinerzeit bei der energischen, katalytischen Reduktion des Chartreusin‐Aglykons eine Reihe von Hydrierungsprodukten erhalten. Ein grosser Teil dieser Hydrierungsprodukte wurde nun in ihrer Konstitution aufgeklärt und miteinander chemisch verknüpft.
Über die Struktur des Chartreusisn II
Authors: Eisenhuth W. , Stamm O. A. , Schmid H. 
Published: December 2004

AbstractDurch Abbau‐Reaktionen, NMR.‐Spektren und Anwendung der Isorotationsregel wurde die Lokalisierung und die Struktur des aus D‐Digitalose und D‐Fucose bestehenden Disaccharid‐Teiles des Antibiotikums Chartreusin bestimmt. Fur das Chartreusin folgt demnach die vollstandige Strukturformel I.
Indolalkaloide aus den Blättern von Pleiocarpa pycnantha (K. SCHUM.) Stape, var. tubicina (Stapf) Pichon 7. Mitteilung über Pleiocarpa‐Alkaloide [1]
Authors: Kump W. G. , Patel M. B. , Rowson J. M. , Schmid H. 
Published: December 2004

AbstractEs wird über die Isolierung und Identifizierung der 6 Indolalkaloide Kopsinin (I), 19,20‐Dihydroakuammicin (II), Tubifolin (III), Tubifolidin (IV), Tubotaiwin (V) und Tuboxenin (VII) aus den Blättern von Pleiocarpa pycnantha (K. SCHUM.) STAPF, var. tubicina ( STAPF) PICHON berichtet.
Synthesen in der Emetin‐Reihe. 11. Mitteilung. 2‐Arylsubstituierte Hydrobenzo [a] chinolizine
Authors: Bruderer H. , Baumann M. , Uskokovié M. , Brossi A. 
Published: December 2004

AbstractA new synthesis of various 2‐p‐chlorophenyl substituted hydrobenzo[a]quinolizines is described. The configuration of the various compounds has been elucidated by physical chemical methods.
Die Oxydation von (+)‐(4R)‐4, 8‐Dimethyl‐nonanol‐(1) mit Blei (IV)‐ acetat
Authors: Hauser D. , Schaffner K. , Jeger O. 
Published: December 2004

AbstractThe lead tetraacetate oxidation of the optically active aliphatic alcohol 1 in benzene afforded the tetrahydrofurane derivative 3 and the 3‐acetoxy‐tetrahydro‐pyranes 4–6 as major products. The formation of the expected compound 3 in racemic form is interpreted by the stepwise sequence a → b → c → d1–3 → e. The appearance of a carbonium ion of type d3 in the conversion 1 → 3 is in contrast to the direct oxydative ring closure (cf. c → e) which had been postulated previously for cases involving alicyclic educts with sterically fixed reaction centres. The same carbonium ion d3 is considered as a possible intermediate in the formation of compounds 4–6 (cf. f → g → h). The latter process represents a novel type of reaction of monohydric alcohols with lead tetraacetate.
Fragmentierungen und intramolekulare Abstraktionen tertiärer Wasserstoffatome ausgehend von primären Oxyradikalen mit fixierten Reaktionszentren
Authors: Hauser D. , Heusler K. , Kalvoda J. , Schaffner K. , Jeger O. 
Published: December 2004

AbstractTreated with lead tetraacetate in boiling benzene the saturated 19‐hydroxy steroids 9 and 16 gave complex mixtures containing products of fragmentation and of hydrogen abstraction from δ‐carbon atoms. This behaviour differs significantly from the preponderantly uniform fragmentation of the unsaturated alcohols 1 and 36, which takes place already at room temperature and is ascribed to anchimeric acceleration by the homoallylic double bond.
Dosage fluorimétrique de quantités de bore de I'ordre du submicrogramme par la dihydroxy‐2,4‐benzophénone (D. H. B.)
Authors: Monnier D. , Marcantonatos A. , Marcantanatos M. 
Published: December 2004

AbstractLa dihydroxy‐2,4‐benzophénone(D. H. B.) qui donne avec l'acide borique un complexe fluorescent est proposée pour le dosage fluorimétrique du bore. L'intensité de la fluorescence est proportionnelle à la concentration du bore entre 0,0036 et 0,18 μg/ml. Le complexe se forme en milieu sulfurique concentré ou peu dilué. La composition du complexe (1:1) a été établie par la méthode de JOB et l'effet de filtre dû au réactif a été déterminé, ainsi que la vitesse de formation du complexe à deux températures, l'effet de l'eau sur l'intensité de la fluorescence et la reproductibilité des blancs. L'étude statistique montre que dans une prise de 3 ml, on peut doser 0,0036 μg/ml de bore (0,01082 μg/3 ml) avec une erreur de ±13% et que pour 0,1803 μg/ml de bore (0,541 μg/3 ml) l'erreur est de l'ordre de ±3%.
Über die Alkylierung von Indazolonen
Authors: Schmutz J. , Hunziker F. , Michaelis W. , Wander A. 
Published: December 2004

AbstractThe alkylation of Indazolone (V) resp. 1‐Carbethoxy‐indazolone (I) is reported. The structures of the reaction products were ascertained with the help of IR. and UV. spectroscopy.
Welkstoffe und Antibiotika. 32. Mitteilung. Synthese von Javanicin‐5,8‐dimethyläther und Konstitution von Javanicin und Fusarubin
Authors: Hardegger E. , Steiner K. , Widmer E. , Pfiffner A. 
Published: December 2004

AbstractDas aus 2‐Allyl‐3‐methyl‐5,7,8‐trimethoxynaphtol(I) hergestellte 2‐Acetonyl‐3‐methyl‐5,7,8‐trimethoxy‐l,4‐naphtochinon (VI) erwies sich identisch mit dem aus Javanicin gewonnenen Javanicind, B‐dimethyläther (VI). Damit wurde erstmals die Konstitution des Javanicins und des damit strukturell verknüpften Fusarubins gemä,ss VII bzw. VIIa bewiesen.
Substitution électrophile armatique. VI. Détermination des constantes σ+ pour les groupes Si(CH3)3 et Sn(CH3)3
Authors: Buschman O. , Grosjean M. , Nasielski J. , Martin R. H. 
Published: December 2004

AbstractRates of reaction between iodine and p‐trimethylsilyl‐ and p‐trimethylstannyl‐phenyl‐trimethyltin in methanol have been determined. These rates show that for the (CH3)3Si‐ substituent, the donor inductive effect and the withdrawing mesomeric effect of the metal cancel each other; for the (CH3)3Sn substituent, the donor inductive effect is preponderant.
Etude des composés d'addition des acides de LEWIS XXIII. Composés d'addition entre acétophénones méta‐substituées et TiCl4
Authors: Rossetti G. P. 
Published: December 2004

AbstractThe adducts of the electronic acceptor TiCl4 with m‐NO2−, m‐Br, m‐CH3O‐, and m‐CH3− acetophenones have been prepared.
Organische Phosphorverbindungen XV. Eine neue Methode zur Darstellung von Aminophosphinen und einige ihrer Reaktionen
Authors: Maier Ludwig 
Published: December 2004

AbstractThe reaction of (CH3)2NPCl2, [(CH3)2N]2PCl, Et2NPCl2 and C6H5(CH3)NPCl2 with organoaluminum compounds, (CH3)3Al, Et3A1, Et2AlCl, EtAlC12 and iso‐Bu3Al, has been studied. The preparation of dialkylamino‐dialkylphosphines, R2PNK′R″ (R  CH3, Et, i‐Bu; R′R″  CH3, Et; R′  CH3; R″  C6H5), and bis‐dialkylamino‐alkyl‐phosphines, RP(NR′2)2 (R  Et, i‐Bu, R′  CH3), and their reaction with alcohols and PC13 is described. The preparation of some unsymmetrical tertiary phosphine oxides, R2R′PO (R  CH3, Et; R′  C12H25) is also reported. In addition, results on the reaction of PC13 with Et3A1 and CH3AlCl2 are presented.
Über Pyromellitsäure‐ und Cumidinsäure‐Derivate. XII. Teil. Einige Benzimidazole aus Pyromellitsäure‐dianhydrid
Authors: Manukian B. K. 
Published: December 2004

AbstractDie Umsetzung von Pyromellitsaure‐dianhydrid (I) mit o‐Phenylendiamin in kochendem Nitrobenzol ergab Terephtaloylen‐his‐benzimidazol (III), 1,2‐Bis‐(2‐benzimidazoly1)‐benzoylon‐benzimidazol (VII) und 1,2,4,5‐Tetrakis‐(2‐benzimidazolyl)‐benzol (VIII).
Recherches sur l'ozonnation de l'oléate d'éthyle suivie par spectrographie d'absorption IR
Authors: Briner E. , Fliszár S. , Rossetti G. P. 
Published: December 2004

AbstractL'ozonation de l'oléate d'éthyle donne lieu à la formation de l'aldéhyde pélargonique. Mais les manifestations spectrographiques de la production d'aldéhydesont moins marquées que dans l'ozonation d'oléfines à Δ conjugé avec un groupe carbonyle.
Über die Aktivierung des Biotins und die Bildung der Acetyl‐CoA‐Holocarboxylase in der Leber de Hühnchens
Authors: Vallotton M. , Borel G. A. , Schuter R. , Leuthardt F. 
Published: December 2004

AbstractAus Hühnchenleber wurde eine Enzymfraktion abgetrennt, welche Biotin in Gegenwart von ATP in eine «aktivierte» Form, sehr wahrscheinlich Biotinyladenylat überführt.
Silylierung hydroxyaromatische Verbindungen mit Si‐N‐Verbindungen. 5. Mitteilung über Silicium‐organische Verbindungen
Authors: Ismail R. M. 
Published: December 2004

AbstractSubstituierte hydroxyaromatische Verbindungen lassen sich mit Si‐N‐Verbindungen, wie cyclischen Silazanen, Polysilazanen oder Diaminosilanen, silylieren. Das Verfahren eignet sich besonders zur Silylierung von Verbindungen, die neben Hydroxygruppen noch weitere Substituenten enthalten, oder auch zur Umsetzung kompliziert gebauter Verbindungen. Es wurden mehrere noch nicht beschriebene Verbindungen hergestellt und charakterisiert.
Über die Trennung flüchtiger Halogenide durch Oberflächenreaktionen
Authors: Gäumann A. , Lanini S. 
Published: December 2004

AbstractDie Reaktionen flüchtiger Halogenide an metallischen Oberflächen werden im Hinblick auf ihre Eignung zur Abtrennung bestimmter Komponenten (Hochreinigung) von Halogenidgemischen diskutiert. Eine allgemeine Beurteilung derartiger Umsetzungen aus thermodynamischen Grössen (Gleichgewichtsannahme) ist nicht möglich.
Temperaturabhängigkeit des Potentials von Glaselektroden‐Messketten. Einfaches Hochtemperatur‐Ableitsystem
Authors: Clerc J. T. , Štefanac Z. , Simon W. 
Published: December 2004

AbstractThe temperature dependence of the EMF of glass reference electrode assemblies for pH measurements is discussed. A simple arrangement having an EMF of zero mV at pH = 7,0, independent of the temperature, suitable for high temperature applications, is described.
ESR.‐Spektren des Radiakal‐Anions des 1,4,5,8‐Tetraazanaphtalins
Authors: Gerson F. , Armarego W. L. F. 
Published: December 2004

AbstractESR spectra of the radical anions obtained from 1,4,5,8‐tetraazanaphthalene by electrolytic and chemical reduction have been recorded. The hyperfine structure of the electrolytically generated anion (solvent: N,N‐dimethylformamide; counter‐ion: tetraethylammonium) is that of an unassociated species, whereas evidence of strong ion‐pairing can be derived from the spectra of the chemically prepared anions (solvent: 1,2‐dimethoxyethane; counter‐ion: K⊕ or Na⊕).
Anorganische Dünnschicht‐Chromatograpie. 10. Mitteilung. Dünnschicht‐Chromatographie als Hilfsmittel in der Radiochemie
Authors: Seiler H. M. 
Published: December 2004

AbstractThin‐layer chromatography is applied to the separation of 234Th from natural 238U and to the separation of the neutron activation products of NH4Cl: 38Cl, 35S and 32P.
Die Struktur des Betanins. 7. Mitteilung. Über die Konstitution des Randenfarbstoffes Betanin
Authors: Wilcox M. E. , Wyler H. , Mabry T. J. , Dreiding André S. 
Published: December 2004

AbstractIt is shown that the glucose residue in betanin is attached at the 5‐hydroxyl group (structure 2): Treatment of betanin with diazomethane, acidic hydrolysis and acetylation afforded 5‐O‐acetyl‐6‐O‐methyl‐neobetanidin trimethylester (9), which was cleaved by alkali. The cleavage product was esterified with methanol and oxydized by means of FRÉMY salt to 5‐hydroxy‐6‐methoxy‐2‐methoxycarbonyl‐indole (15).
Schwefel in aromatischen Verbindungen als Ligandatom in Chelatkomplexen II
Authors: Kahmann K. , Sigel H. , Erlenmeyer H. 
Published: December 2004

AbstractThe hitherto unknown compounds 5‐(2‐Pyridyl)‐thiazole and 2‐(N‐Thioformyl‐ω‐aminoacetyl)‐pyridine have been synthesized. The stability constants of the Cu2+‐1:1‐complexes of 5‐(2‐Pyridyl)‐thiazole, 2‐(2‐Pyridyl)‐thiazole and 4‐(2‐Pyridyl)‐thiazole have been measured and are discussed. Evidence for the coordination of the sulphur atom in 5‐(2‐Pyridyl)‐thiazole is given.
Alkaloide aus Strychnos chlorantha PROG. 58. Mitteilung über Calebassen‐Alkaloide
Authors: Müller H. , Hesse M. , Wasser P. , Schmid H. , Karrer P. 
Published: December 2004

AbstractDie Stammrinde und die Wurzelrinde einer in Costa Rica vorkommenden Strychnos‐Art, S. chlorantha PROG., wurden auf die in ihnen vorkommenden Alkaloide untersucht. Die Stammrinde enthielt nur verschiedene tertiäre Basen; zwei derselben wurden massenspektrometrisch identifiziert: Acetyldiabolin (= Diacetyl‐WIELAND‐GUMLICH‐Aldehyd) und Diabolin (N(a)‐Acetyl‐WIELAND‐GUMLICH‐Aldehyd).
Assoziation bei Azoverbindungen III: Untersuchung von 4‐Dimethylaminoazobenzol‐Derivaten in Lösung und in der Gasphase
Authors: Green H. S. , Jones F. , Syz M. , Zollinger Hch. 
Published: December 2004

Abstract(1) Spectrophotometric measurements at widely different concentrations in neutral and acidic aqueous ethanol (50% vol.) show that derivatives of 4‐dimethylaminoazobenzene are not associated under these conditions.
Absolute Konfiguration von Alkaloiden der Aspidospermin‐Gruppe
Authors: Klyne W. , Swan R. J. , Bycroft B. W. , Schumann D. , Schmid H. 
Published: December 2004

AbstractThe absolute configuration of a number of aspidospermine alkaloids has previously been suggested by a correlation of their molecular rotations with those of some strychnine alkaloids. This correlation is now strengthened and extended by a study of the optical rotatory dispersion (ORD) curves.
Zur Kenntnis der Hexaalkylbenzole. 7. Mitteilung. Anomale FRIEDEL‐CRAFTS‐Reaktionen von Hexa‐n‐propylbenzol
Authors: Hopff H. , Gati A. 
Published: December 2004

AbstractHexa‐n‐propylbenzene undergoes the same anomalous type of FRIEDEL‐CRAFTS reactions as hexaethyl and hexamethyl benzene. Acid chlorides and dicarboxylic anhydrides produce under elimination of an alkyl group the corresponding penta‐n‐propyl‐phenyl ketones and penta‐n‐propyl‐benzoyl carboxylic acids respectively. Reaction of the carbamylchloride‐aluminiumchloride complex yields penta‐n‐propyl‐benzamide which has been hydrolysed to penta‐n‐propyl‐benzoic acid.
Das massenspektrometrische Verhalten quartärer Stickstoffverbindungen 1. Mitteilung
Authors: Hesse M. , Vetter W. , Schmid H. 
Published: December 2004

AbstractEs wurde das Verhalten quartärer Alkaloidsalze im Massenspektrometer untersucht. Dabei fanden sich drei prinzipiell verschiedene Verhaltensweisen:

Angriff des Anions an der N(b)‐Methylgruppe unter Bildung des tertiären Amins (Demethylierungsbase)und des Methylhalogenids.
Thermischer HOFMANN‐Abbau unter Bildung eines ungesättigten Amins (HOFMANN‐Base) und des Halogenwasserstoffs.
Angriff des Anions an einem der drei anderen N(b)‐Substituenten unter Bildung eines tertiären Amins und Eintritt des Halogenatoms in dieses (Substitution).
3‐O‐Methyl‐6‐desoxy‐D‐gulose Desoxyzucker, 37. Mitteilung
Authors: Kaufmann Heinz 
Published: December 2004

AbstractA synthesis of 3‐O‐methyl‐6‐deoxy‐D‐gulose has been carried out using 2,3‐di‐O‐benzoyl‐β‐methyl‐D‐glucopyranoside, (prepared in seven steps form D‐glucose) as starting material.
Decahydrochinolole. 3. Teil. Synthese und Konfiguration der epimeren 7‐Hydroxy‐trans‐decahydrochinoline
Authors: Grob C. A. , Wilkens H. J. 
Published: December 2004

AbstractThe epimeric 7α‐ and 7β‐hydroxy‐trans‐decahydroquinolines, 1 and 2 respectively, have been prepared from Δ8,9‐octahydro‐7‐quinolone (5) and their configurations and conformations determined by chemical and NMR.‐spectral methods.
Struktur und Aktivität von CuII‐Komplexen bei der Katalyse radikalischer H2O2‐Zerlegungen
Authors: Brintzinger H. , Erlenmeyer H. 
Published: December 2004

AbstractThe bidentate N‐chelates CuII‐bipyridine and CuII‐ethylenediamine are found to be more active in catalysis of H2O2 decomposition than the O‐chelate CuII‐diphosphate and the terdentate N‐chelate CuII‐terpyridine. This is parallelled by changes in the tendency to form ternary peroxo complexes from the respective chelates. Mechanisms and consequences of these catalytic features are discussed.