in hexane trifluoromethanesulfonic acid addn. to 9-borabicyclo<3,1,1>nonane in hexane under Ar, stirring overnight, all at 25°C in the presence ofoxygen or air; concn., vac. distn. under Ar, IR anal.;

in toluene Schlenk technique, under Ar; soln. of (C8H14BH)2 (0.5 equiv.) and HOTf refluxed for 1 h;