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'Boryl Substitution' in keywords
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1985 (1)
1Author    Uwe Klingebiel, Lutz SkodaRequires cookie*
 Title    Fluoroboryl-and Fluoroboranediyl-Cyclosilazanes  
 Abstract    Hexamethylcyclotrisilazanes and their lithium salts react with F2BN(SiMe3)2 to give the corres­ ponding mono-, bis-, and tris(fluoroboryl)cyclotrisilazanes. Di-fluoroboryl-substituted rings are obtained in the reaction of l,3-bis(silyl)-and 1-boryl-cyclotrisilazanes with BF3-etherate. A com­ pound consisting of two cyclodisilazanes connected by a (SiNBNSi)-bridge is formed in the reaction of lithiated bis(silyl)cyclotrisilazane with BF3-etherate. Ring coupling of two six mem-bered rings occurs in the reaction of lithiated cyclotrisilazane with 1-difluoroboryl-cyclotrisilazane and in the reaction of lithiated bis(fluoroboryl)cyclotrisilazane with BF3-etherate in a molar ratio 2:1. Ring expansion takes place in the reaction of the lithium salt of a four membered SiN-ring with F2BN(SiMe3)2. Substitution occurs in the same reaction with F3SiN(SiMe3)2. 
  Reference    Z. Naturforsch. 40b, 913—918 (1985); eingegangen am 16. März 1985 
  Published    1985 
  Keywords    Cyclosilazanes, Fluoroboranes, Boryl Substitution, Ring Coupling, Ring Expansion 
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 TEI-XML for    default:Reihe_B/40/ZNB-1985-40b-0913.pdf 
 Identifier    ZNB-1985-40b-0913 
 Volume    40