90756-22-2Relevant academic research and scientific papers
Iminoboranes from the Thermal Decomposition of Dialkylazidoboranes
Meier, Hans-Ulrich,Paetzold, Peter,Schroeder, Ernst
, p. 1954 - 1964 (2007/10/02)
Iminoboranes RB = NR (1a - f) are formed by the thermal decomposition of azidoboranes R2BN3 (5a - f) in the gas phase or in solution.At low temperature, the iminoboranes 1b, d, e (R = iPr, iBu, sBu) can be trapped from the gas phase.They are characterized and brought to reaction as isolated species.Without other reactands, the iminoboranes dimerize or trimerize to form the cyclic products 2 or 3, respectively, or polymerize to the wax-like solids 4.Produced in solution below 100 deg C, the iminoboranes are azidoborated by the educts 5 to give the (azidoboryl)amines 6 which are transformed into the borazines 3 at 160 - 180 deg C.Iminoborazines undergo an ethyloboration with BEt3, a cycloaddition with PhN3, and in the absence of the strongly reactive R2BN3 a concurring cycloaddition and azidosilation with Me3SiN3 with formation of 7 - 10, respectively.
