20534-06-9Relevant academic research and scientific papers
Boron Imides from the Thermal Decomposition of Diarylazidoboranes
Paetzold, Peter,Truppat, Ruediger
, p. 1531 - 1539 (2007/10/02)
Diarylazidoboranes Ar2BN3 (1a-d) are thermolyzed either into diazadiboretidines (ArBNAr)2 (2) or into borazines (ArBNAr)3 (3).After formation of only one half of the expected amount of N2, the boryltetrazaborolines 4c, d are isolated as intermediates.The boranes 1a-d are transformed into phenyltetrazaborolines 6a-d or into silyltetrazaborolines 7a-d by the action of phenyl or trimethylsilyl azide, respectively; the formation of 7b, d is accompanied by the formation of the open-chain aminoboranes 9b, d.The action of triethylborane on 1a-d yields the diborylamines 5a-d and, moreover, the diborylamines 8a, d, isomeric to 5a, d.The formation of boron imides ArB=NAr (10a-d) as reaction intermediates is discussed and, in favour of that, the reactions of 1c with O-N(Me)=CH-Ph, yielding 11c, and of 1a, d with B(sBu)3, yielding 5a', 8a', 5d', are referred too.
