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1Author    Cr Simionescu, S. Dumitriu, V. Bulacovschi, V. I. Popa, B. SimionescuRequires cookie*
 Title    Molekulare Reaktionen in kalten Methan-Wasser-Plasmen und die Wirkung von UV-Bestrahlung Molecular Reactions in Cold Methane-Water Plasma and the Effect of UV Irradiation  
 Abstract    After passage of methane-water mixtures through the state of a cold plasma, numerous products were identified, especially aldehydes, ketones, alcohols and acids. Their concen-tration was dependent on the methane/water ratio. Irradiation with UV light during or after the process gave transformations of the above compounds to more complex combi-nations. For the formation of ketones, aldehydes, alcohols and acids a detailed mechanism is proposed. 
  Reference    Z. Naturforsch. 33b, 390—395 (1978); eingegangen am 8. April 1976 
  Published    1978 
  Keywords    Methane-Water Plasma, Aldehydes, Ketones, Alcohols, Acids 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0390.pdf 
 Identifier    ZNB-1978-33b-0390 
 Volume    33 
2Author    Eva Estradaa, AntonR. IekerbRequires cookie*
 Title    Electrosynthesis of 2-Alkyl-4(3H)-quinazolinones  
 Abstract    Electroreduction of 2-nitrobenzonitrile in a variety of alcohols leads to 2-alkyl-4(3 H)-quinazolinones via incorporation of the alkyl chain of the alcohols under cyclization. Physical properties and spectroscopic data of the quinazolinones and a probable pathway of their formation are given. 
  Reference    Z. Naturforsch. 49b, 1566—1568 (1994); received July 7 1994 
  Published    1994 
  Keywords    Cathodic Reduction, 2-Nitrobenzonitrile Ring Closure, Alcohols, Heterocycles 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1566.pdf 
 Identifier    ZNB-1994-49b-1566 
 Volume    49 
3Author    A. M. Rizk, A. M. Youssef, M. A. Diab, H. M. SalemRequires cookie*
 Title    Triterpenoids and Related Substances of Euphorbia paralias  
 Abstract    The study of the triterpenoids and their related substances of E uphorbia paralias resulted in isolation of ursolic acid, cycloartenol, 24-methylenecycloartenol, uvaol, a hydrocarbon fraction (/1-C29 71-C35), alcohol fraction (hexacosanol and octacosanol) and a sterol fraction (/?-sitosterol, stigmasterol, campesterol and cholesterol). Constituents of Egyptian Euphorbiaceae, I 
  Reference    (Z. Naturforsch. 29c, 529 [1974]; received June 10 1974) 
  Published    1974 
  Keywords    E uphorbia paralias, Triterpenoids, Sterols, Alcohols, ra-Alkanes 
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 TEI-XML for    default:Reihe_C/29/ZNC-1974-29c-0529.pdf 
 Identifier    ZNC-1974-29c-0529 
 Volume    29 
4Author    MajidM. Heravi, M. Aryam, M. AghayanRequires cookie*
 Title    Microwave-Assisted Oxidation of Alcohols Using Wet Alumina Supported Ammonium Chlorochromate in Solventless System  
 Abstract    A simple and selective m ethod for the oxidation of alcohols to carbonyl compounds is described that occurs on wet alumina supported ammonium chlorochromate under micro­ wave irradiation in solventless system. 
  Reference    Z. Naturforsch. 54b, 815 (1999); received D ecem ber 2 1998 
  Published    1999 
  Keywords    Oxidation, Alcohols, Carbonyl Compounds, Wet Alumina, Solventless System, Ammonium Chlorochromate 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0815.pdf 
 Identifier    ZNB-1999-54b-0815 
 Volume    54 
5Author    Jiirgen Jacob, Gernot GrimmerRequires cookie*
 Title    Gefiederlipide der Ringeltaube Columbapalumbus Plumage Lipids from the Ring Dove ( Columba palum bus)  
 Abstract    Ring Only 6.7% of the whole plumage lipids of the ring dove originates from diester waxes of the uropygial gland secretion. The rest is distributed to hydrocarbons (3.3%), sterolesters and waxes (10.7%), free alcohols and sterols (5%), free fatty acids (55.6%), and unidentified material (18.7%). Among the hydrocarbons saturated odd-numbered, unbranched individuals predominate, but moreover 7-methylalkanes have been detected. The chain length of free and esterified alcohols cor­ responds to those of fatty acids where even-numbered compounds predominate. Main alcoholic component, however, is cholestanol. The origin of these lipids is discussed. 
  Reference    (Z. Naturforsch. 30c, 363 [1975]; eingegangen am 27. Dezember 1974) 
  Published    1975 
  Keywords    Dove Plumage, Feather Lipids, Hydrocarbons, Waxes, Alcohols, Free Fatty Acids 
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 TEI-XML for    default:Reihe_C/30/ZNC-1975-30c-0363.pdf 
 Identifier    ZNC-1975-30c-0363 
 Volume    30 
6Author    SayedA. Ibrahim3, JamesW. Averyb, PaulJ. Weldonc, JamesW. Wheeler3Requires cookie*
 Title    Age-Class Differences in Lipids from the Paracloacal Glands of the American Alligator {Alligator mississippiensis)  
 Abstract    The paracloacal gland secretions of immature and adult American alligators (Alligator mississippiensis) from Louisiana were analyzed by gas chromatography/mass spectrometry and nuclear magnetic resonance spectroscopy to investigate age-class differences in lipid composition. The secretions of both immature and adult alligators contain saturated C 14 and C 16 free fatty acids and decyl, undecyl, dodecyl, tetradecyl, and hexadecyl acetates. Com­ pounds observed only in immature alligators include dodecanoic acid, C J2 and C ]4 alcohols, C i0-C 14 butanoates, an array of C8-C 18 3-methylbutanoates, C 12-C 15 hexanoates, C x2 and C 14 octanoates, a C12 decanoate, C 10-C 14 dodecanoates, C I0-C ]6 tetradecanoates, C 12 and C 14 hexadecanoates, a C x2 octadecanoate, and a diterpene hydrocarbon identified as (E ,E)-7,ll,15-trimethyl-3-methylenehexadeca-l,6,10,14-tetraene (ß-springene). Compounds ob­ served only in adults include several C7-C 16 free fatty acids and certain C U)-C 18 acetates. The age-class differences we observe in the paracloacal gland lipids of alligators from Louisi­ ana are similar to those previously reported for alligators from Texas. 
  Reference    Z. Naturforsch. 53c, 201 (1998); received October 15/December 30 1997 
  Published    1998 
  Keywords    Alligator mississippiensis, Paracloacal Gland Secretions, Straight-and Branched-Chain Esters, Alcohols, Fatty Acids, ß-Springene 
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 TEI-XML for    default:Reihe_C/53/ZNC-1998-53c-0201.pdf 
 Identifier    ZNC-1998-53c-0201 
 Volume    53