反应条件
in dichloromethane N2 atmosphere, addn. of soln. of stannyl compound to soln. of borane at -65 to -75°C (30 min), slow warming to room temp., stirring (roomtemp., 12 d); (5)B-NMR-monitoring, PhN(BClPh)2/PhN(SnMe3)(BClPh) ratio 9.1:0.4, removement of volatiles (25°C, 12 Torr), not isolated;
