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1985 (1)
1981 (1)
1980 (1)
1Author    MohamedAbbas Metwally, El-Sayed Afsah, FathyA. AmerRequires cookie*
 Abstract    Reaction of the title compound 1 with o-phenylenediamine afforded either the diaze-pinones (2) or the amides (3). Treatment of 1 with thiourea gave the thiouracils (4). The indazoles (5) gave diacetyl or diphenylsulphonyl derivatives (6, 7) on treatment with acetic anhydride or benzenesulphonyl chloride, respectively. Condensation of 1 with benzenesulphonhydrazide gave the 2-substituted indazole (8). Michael condensation of 1 with anisalcyclohexanone gave 9. 
  Reference    Z. Naturforsch. 36b, 1147—1148 (1981); received June 10 1980/March 5/May 25 1981 
  Published    1981 
  Keywords    Diazepinones, Thiopyrimidines, Indazoles 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-1147.pdf 
 Identifier    ZNB-1981-36b-1147 
 Volume    36 
2Author    FathyA. Amer, El-Sayed Afsah, MohamedA. Metwally, MohamedT. El-ZimaityRequires cookie*
 Title    Related Compounds from l,4-Bis(ethoxycarbonyl)-2,5-diamino-l,4-cyclohexadiene  
 Abstract    Interaction of o-phenylenediamine with l,4-Bis-(ethoxycarbonyl)-2,5-diamino-l,4-cyclo-hexadiene (1) gave 2, which cyclised to the hexahydrobenzodiazepinone (3). On the other hand, interaction of 1 with o-aminophenol, gave compound 4 which on treatment with polyphosphoric acid gave the tetrahydrobis-benzooxazepinone (11). Treatment of 1 with phenylisothiocyanate and formamide afforded the dithiopyrimidoquinazolinone (8) and the tetrahydropyrimidoquinazolinone (9), while the interaction of 1 with benzenesulphonyl-chloride gave dibenzenesulphonamido-cyclohexadiene dicarboxylate (10). The structure of these compounds was established by chemical and spectroscopic methods. 
  Reference    Z. Naturforsch. 35b, 1395—1397 (1980); received July 13/October 11 1979/May 2 1980 
  Published    1980 
  Keywords    Diazepinones, Oxazepinones, Pyrimidoquinazolinones, Synthesis 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-1395.pdf 
 Identifier    ZNB-1980-35b-1395 
 Volume    35 
3Author    Roberto Millini, Horst Kisch, Carl KrügerRequires cookie*
 Title    Iron Carbonyl Assisted Synthesis of l,2-Diazepin-3-ones from Cyclic Diazenes and Alkynes [1]  
 Abstract    , 2a, c are prepared by an iron carbonyl mediated reaction sequence from alkynes and cyclic 1,2-diazenes. The latter are first converted into hexacarbonyl diiron complexes which react with two molecules of an alkyne to afford tricyclic carbonyl iron compounds I —III. Oxidative degradation with bromine leads to these novel heterocycles whose structure is confirmed by an X-ray analysis of lb. 
  Reference    Z. Naturforsch. 40b, 187—192 (1985); received October 15 1984 
  Published    1985 
  Keywords    Diazepinones, Diazenes, Alkynes, Carbonyl-Iron Assistance Bicyclic l, 2-diazepin-3-ones la—c 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0187.pdf 
 Identifier    ZNB-1985-40b-0187 
 Volume    40