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'Unsaturated Compounds' in keywords
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1981 (1)
1976 (2)
1975 (1)
1Author    H. Parlar, R. Baumann, F. KörteRequires cookie*
 Title    Reaktionen von eis-Crotonsäurederivaten mit Cyclopentadien in heterogener Phase Reaction between cis-Crotonic Acid Derivatives and Cyclopentadiene in the Heterogeneous Phase  
 Abstract    Diels-Alder reactions between cyclopenta-diene and cis-crotonic acid derivatives were examined in the absorbed phase on various surfaces. The results indicate considerable differences under these conditions in the relative yields of exo and endo isomers. On silica gel, montigel, and aluminium oxide the reactions give mainly endo isomers. 
  Reference    Z. Naturforsch. 36b, 898—899 (1981); eingegangen am 30. April 1981 
  Published    1981 
  Keywords    Diels-Alder Reactions, Reactions on Surfaces, a, /?-Unsaturated Compounds 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0898_n.pdf 
 Identifier    ZNB-1981-36b-0898_n 
 Volume    36 
2Author    Requires cookie*
 Title    Catalytic Hydrogenation of U nsaturated Compounds with H 2PtC l6-SnCl2 * 2 H ,0 in Acetic Acid  
 Abstract    W a l t e k S t r o h m e ie r und M a g d a le n a P f ö h l e r A hydrogenation catalyst, operating under mild conditions can be prepared by dissolving H 2PtC l6 and SnCl2 • 2 H 20 in acetic acid. After injection of an unsaturated compound under a H 2-atmosphere the active m oiety of the catalyst is generated. No active m oiety of catalyst is formed if the compound has a triple bond. But acetylenic derivatives are hydrogenated if the active m oiety of the catalyst is first produced by hydrogenation of cyclohexene. 
  Reference    (Z. Naturforsch. 30b, 466—467 [1975]; eingegangen am 27. Januar 1975) 
  Published    1975 
  Keywords    Catalysis, Hydrogenation, Unsaturated Compounds 
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 TEI-XML for    default:Reihe_B/30/ZNB-1975-30b-0466_n.pdf 
 Identifier    ZNB-1975-30b-0466_n 
 Volume    30 
3Author    Walter Strohmeier, Luise WeigeltRequires cookie*
 Title    Homogeneous Catalytic Hydrogenation of Unsaturated Compounds with H2PtCl6 + SnCl2 * 2 H20 in iso-Propanol  
 Abstract    A catalytical system for homogeneous hy-drogenation of unsaturated compounds, oper-ating under mild conditions can be prepared with H2PtCl6-SnCl2 • 2 H20 and the additives HBr and H20 in m>-propanol. Reaction rates up to 32 mMol • 1 _1 • min -1 were observed. After hydrogenation of one batch new sub-strate can be injected several times without noticeable desactivation of the system. Hy-drogenation rate of 2-tr-cis-hexene is only 0,5 times less than of 1-hexene. Mesityloxide is selectively hydrogenated regarding the double bond. 
  Reference    (Z. Naturforsch. 31b, 387—389 [1976]; eingegangen am 17. Oktober 1975) 
  Published    1976 
  Keywords    Catalysis, Hydrogenation, Unsaturated Compounds 
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 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0387_n.pdf 
 Identifier    ZNB-1976-31b-0387_n 
 Volume    31 
4Author    Walter Strohmeier, Magdalena PföhlerRequires cookie*
 Title    Homogeneous and Heterogeneous Catalytic Hydrogenation of Unsaturated Compounds with H2PtCl6 + SnCl2 * 2 H20 in Acetic Acid  
 Abstract    The hydrogenation catalyst, prepared by dissolving H2PtCl6 + SnCl2 • 2 H20 in acetic acid operates as a homogeneous or heteroge-neous catalyst, depending on the ratio v = Sn/Pt. Styrene is hydrogenated by the homo-geneous and heterogeneous system but cyclo-hexene only by the heterogeneous system. 
  Reference    (Z. Naturforsch. 31b, 390—392 [1976]; eingegangen am 17. Oktober/24. November 1975) 
  Published    1976 
  Keywords    Catalysis, Hydrogenation, Unsaturated Compounds 
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 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0390_n.pdf 
 Identifier    ZNB-1976-31b-0390_n 
 Volume    31