in decane addn. of a soln. of Me3SiNHMe in decane to 2,4,6-tri-t-butylphenyl difluoroborane and vigorously refluxing for 3-5 d under N2; distilling off the excess of amine and subliming the methylaminoborane from the residue under vacuum, elem. anal.;

in decane addn. of a soln. of Me3SiNHCH2Me in decane to 2,4,6-tri-t-butylphenyl difluoroborane and vigorously refluxing for 3-5 d under N2; distilling off the excess of amine and fractional distn. of the ethylaminoborane from the residue, elem. anal.;

in decane addn. of a soln. of Me3SiNHC6H5 in decane to 2,4,6-tri-t-butylphenyl difluoroborane and vigorously refluxing for 3-5 d under N2; distilling off the excess of amine and fractional distn. of the phenylaminoborane from the residue, elem. anal.;

in hexane byproducts: LiF; dropping a soln. of 2,4,6-tri-t-butylphenyl-difluoroborane in n-hexane to a suspension of freshly lithiated 2,6-di(isopropyl)phenylamine in n-hexane cooled with ice (under N2) followed by refluxing for 3 h; removal of the solvent under reduced pressure and subliming the iminoborane from the residue in anoil pump vacuum, elem. anal.;