The Chemistry of Borazine. Iii. B-Silyl Borazines

Synthesis of Silylborazines and Their Utilization as Precursors to Silicon-Containing Boron Nitride⋆

“…Pertinent to our work, two reports of the formation of B-silylborazines, (Ph 3 SiBNMe) 3 and (Ph 3 Si-BNPh) 3 , formed from salt-elimination reactions, have appeared [23] [24] . Similarly, salt-elimination reactions involving the B-chloroborazines, Cl(Me) 2 B 3 N 3 (Me) 3 , Cl 2 (Me)B 3 N 3 -(Me) 3 , (ClBNMe) 3 , and (ClBNH) 3 with LiSi(SiMe 3 ) 3 produce B-silylborazines [(Me 3 Si) 3 Si](Me) 2 B 3 N 3 (Me) 3 (2), [(Me 3 Si) 3 Si](Me)B 3 N 3 (Me) 3 (3), [(Me 3 Si) 3 SiBNMe] 3 (4), and [(Me 3 Si) 3 SiBNH] 3 (5) in high yields as summarized in Eq.…”

Searching for double σ- and π-aromaticity in borazine derivatives

“…Under this energetic and magnetic evidences, we consider that the B 3 N 3 ring, of the systems studied here, should sustain at least a slight p-aromatic character. The latter, together with the fact that the chemistry of borazine, and its derivatives, is well established, [30][31][32] supports our proposal of compounds 4-8, as potential aromatic derivatives of borazine.…”

Synthesis and Reactions of Borazines

“…The triphenylsilyl-substituted borazines 126 and 130 were prepared in 78-90% yield, from the reaction between borazines 19 or 112, respectively, and triphenylsilylpotassium (129) in diethyl ether (Scheme 66). 112 The triphenylsilylpotassium (129) used in the reaction was generated from the cleavage of hexaphenyldisilane with sodium-potassium alloy in ether.…”