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1999 (1)
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1Author    Friedrich Bölsing, Assadollah HakimRequires cookie*
 Title    Präparative organische Chemie unter Verwendung einfach herzustellender Katalysatoren A Simple Method for Preparation of Catalysts for Preparative Organic Chemistry  
 Abstract    There are numerous simple chemical reactions in which reaction products arise, which compared with the materials at the outset, possess a considerably greater surface area. A significant example is the reaction of aluminium alcoholates with water. Reactions of this kind can, to a certain extent, be used as auxiliary reactions, in order to distribute other materials homogenously. In the chosen example, a material dissolved beforehand in the alcoholate, e.g. a solution of a metal salt, would be transferred in the course of the distributing reaction into the newly-developing structure of the reaction product. In this publication the application of some catalysts thus prepared to some classical organic chemical reactions is described by way of example. 
  Reference    Z. Naturforsch. 33b, 632—635 (1978); eingegangen am 9. Februar 1978 
  Published    1978 
  Keywords    Catalysts, Hydrogenation, Dehydrogenation, Dehydration 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0632.pdf 
 Identifier    ZNB-1978-33b-0632 
 Volume    33 
2Author    Wolfgang Bernhardt, Heinrich VahrenkampRequires cookie*
 Title    Hydrierungen und Dehydrierungen im System Benzonitril/Ru 3 (CO)i 2 /Benzylamin Hydrogenations and Dehydrogenations in the System Benzonitrile/Ru 3 (CO) 12 /Benzylamine  
 Abstract    The stepwise interconversions between benzonitrile and benzylamine have been realized in both directions via Ru3 cluster intermediates. The hydrogenation/dehydrogenation system can be entered from Ph-CN, Ru3(CO)12, and H2 yielding HRu3(CO),n(NCHPh) or from PhCH2NH2 and Ru3(CO)12 yielding HRu3(CO)10(NHCH2Ph). These two clusters can be interconverted by thermal hydrogenation and dehydrogenation, with H2Ru3(CO)9(NCH2Ph) as a CO and H2 depen-dent intermediate. The system can be left only towards benzylamine which is formed in small yields from HRu3(CO)10(NHCH2Ph) at high temperatures and under high CO or H2 pressures. 
  Reference    Z. Naturforsch. 43b, 643—647 (1988); eingegangen am 29. Januar 1988 
  Published    1988 
  Keywords    Hydrogenations, Dehydrogenations, Benzonitrile, Benzylamine 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0643.pdf 
 Identifier    ZNB-1988-43b-0643 
 Volume    43 
3Author    Hans Möhrle, Hans-Jörg HemmerlingRequires cookie*
 Title    Kondensierte Imidazolone Condensed Imidazolones  
 Abstract    The dehydrogenation of 2-rerr-amino-2,2-diphenyl-acetamides with cyclic amine components gives under neighbouring the corresponding condensed imidazolones 11—13. With analogous reactions of 2-terr-amino-2-phenylacetamides on dependence of the ring size of the amine cycle, a different course is observed resulting in the cyclic acylaminal 14 or in the condensed imidazolone derivatives 15 and 16. 
  Reference    Z. Naturforsch. 40b, 434—440 (1985); eingegangen am 14. September 1984 
  Published    1985 
  Keywords    Condensed Imidazolones, Mercuric EDTA, Dehydrogenation, Neighbour Group Effect 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0434.pdf 
 Identifier    ZNB-1985-40b-0434 
 Volume    40 
4Author    R. An D, H. Swellem, YehiaA A Lla, G. Alal, A.M N Aw, W. ArRequires cookie*
 Title    Cinnamoylacetonitrile in Heterocyclic Synthesis, Part 7 [1]. Simple Synthesis of Benzothiazepines, Pyrones and Oxazolopyridine  
 Abstract    A facile synthesis of the entitled compounds is reported starting with cinnamonitrile. 
  Reference    Z. Naturforsch. 54b, 1197—1201 (1999); received March 3 1999 
  Published    1999 
  Keywords    Cinnamoylacetonitrile, 2, 4-Diarylbenzothiazepines, Dehydrogenation, Tetra-chloro-o-benzoquinone, Acylation 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-1197.pdf 
 Identifier    ZNB-1999-54b-1197 
 Volume    54