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1992 (1)
1989 (1)
1Author    K. U. Rt, N. Iedenzu, Jo An, E. Serw, Atow Ska, Janusz Serw, Atow SkiRequires cookie*
 Title    Studies on l-Trimethylsilyl-2,4,6-triethylborazine and Related Species  
 Abstract    The unsymmetrically substituted borazine (C6H 5)3B3N 3H2[Si(CH3)3] has been obtained from the reaction o f C6H 5BC12 with HN [Si(C H 3)3]-,, and an improved synthesis o f (C2H 5)3B3N 3H 2[Si(CH3)3] has been developed. The reaction o f the latter with an excess o f BC13 proceeds with the ultimate formation o f Cl3B3N 3H 2[Si(CH3)3], whereas the reaction with one molar equivalent o f BBr3 leads to the formation o f Br(C2H5)2B3N 3H-,[Si(CH3)3], but which is contaminated by substantial am ounts o f Br(C2H 5)2B3N 3H3 besides a diborazinyl and additional products. C6H 5BBr2 reacts with N [Si(C H 3)3]3 to give the aminoborane [(CH3)3Si]2N BBr(C6H 5), but C6H5BC12 does not undergo a reaction under analogous condi­ tions. 
  Reference    Z. Naturforsch. 47b, 713—717 (1992); received September 12 1991 
  Published    1992 
  Keywords    Boron-Nitrogen Com pounds, Borazines, Unsymmetrically Substituted Borazines, Polyborazines 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0713.pdf 
 Identifier    ZNB-1992-47b-0713 
 Volume    47 
2Author    Wolfgang Einholz, Gerhard Frey, Wolfgang HauboldRequires cookie*
 Title    Borylierung von Sulfamiden, Sulfoniminen und Sulfondiiminen Borylation of Sulfamides, Sulfonimines and Sulfonediimines  
 Abstract    The diborylated sulfamide 6a can be obtained from 2-chloro-l ,3-dim ethyl-l .3.2-diazaborolidine and the silylated sulfamide la , whereas (M e2N)2BCl and la yield the dithia-tetrazadiborocine 7b. Similarly, (M e2N)2BCl reacts with a) the sulfonimine 2a, b) the sul-fonediim ine 3a to give a) B (N M e:), and the bis-and tris(sulfonim ino)boranes 10b and 11, b) B (N M e2)3 and the dithiatetrazadiborocine 15b. The diborylated sulfamide 6c (R 2B = Ph:B) cannot be isolated. The synthesis of the m onoborylated sulfonim ines 9c, 9e and sulfonediim ines 13, 14 is described. 
  Reference    (Z. Naturforsch. 44b, 47 [1989]; eingegangen am 13. Septem ber 1988) 
  Published    1989 
  Keywords    Boron-Nitrogen Com pounds, Borylated Sulfam ides, Sulfonim ines, Sulfonediim ines, Synthesis, Spectroscopic Data 
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 TEI-XML for    default:Reihe_B/44/ZNB-1989-44b-0047.pdf 
 Identifier    ZNB-1989-44b-0047 
 Volume    44