in neat (no solvent)
byproducts: (CH3)3SiCl; absence of moisture; addn. of silylamine to borane derivative (during 4h, cooling in ice/EtOH, stirring), slow warming to room temp. (overnight); distn. of Me3SiCl (50-55°C, atmospheric pressure), repeated fractional distn.;
参考文献
Bielawski, J.; Das, M. K.; Hanecker, E.; Niedenzu, K.; Noeth, H.
Inorganic Chemistry, 1986 , vol. 25, p. 4623 - 4628