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1997 (1)
1996 (1)
1Author    Z. NaturforschRequires cookie*
 Title    Synthese und Dimerisierungsverhalten des l,l-Bis(trimethylsilyl)-2-(2,5-diisopropylphenyl)silens  
 Abstract    Tris(trim ethylsilyl)silylmagnesium bromide, (Me^SiX^SiMgBr, reacts with 2.5-diisopropyl-benzaldehyde to give 2,5-diisopropylphenyl-tris(trimethylsilyl)silylmethanol (1). With sodium 
  Reference    Z. Naturforsch. 51b, 370—3 (1996); eingegangen am 21. August 1995 
  Published    1996 
  Keywords    Silenes, Silene Dimerization, 2, 3-Disilanaphthalenes Tetrahydro, 1, 2-Disilacyclobutanes 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0370.pdf 
 Identifier    ZNB-1996-51b-0370 
 Volume    51 
2Author    Clemens Krempner1, Rhett Kempeb, Hartmut Oehme3Requires cookie*
 Title    The Thermal Isomerization of a Tetrahydro-2,3-disilanaphthalene into a 1,2-Disilacyclobutane -The Conversion of a Formal Silene [2+4] Cyclodimer into the [2+2] Cycloadduct  
 Abstract    1,2,3,8a-Tetrahydro-1 -mesityl-5,7,8a-trimethyl-2,2,3,3-tetrakis(trimethylsilyl)-2,3-disila-naphthalene (3), the formal [2+4] cyclodimer of the transient 2-mesityl-l,l-bis(trimethylsilyl)-silene (2), on thermal treatment gradually isomerizes to give a mixture of the [2+2] products (E)-and -predominantly -(Z)-3,4-dimesityl-1,1,2,2-tetrakis(trimethylsilyl)-l,2-disilacyclo-butane [(E/Z)-4], By prolonged heating or at higher temperatures both (E/Z)-3 and (Z)-4 are converted into (E)-4, the thermodynamically most stable head-to-head dimer of 2. Possible pathways of the isomerization processes are discussed. 
  Reference    Z. Naturforsch. 52b, 815—818 (1997); received February 14 1997 
  Published    1997 
  Keywords    Silenes, Silene Dimerization, 2, 3-Disilanaphthalene Tetrahydro, 1, 2-Disilacyclobutane 
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 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-0815.pdf 
 Identifier    ZNB-1997-52b-0815 
 Volume    52