反应条件
in dichloromethane N2 atmosphere, addn. of soln. of stannyl compound to suspension of Me2SnCl2 at room temp., addn. of soln. of tBuBBr2 at -50°C (1.5 h), warming to room temp. (1.5 h), stirring (25°C, 96 h), reflux (34 h); NMR-monitoring, not isolated, spectroscopic yields: PhN(BtBuCl)(Sn(Me2Cl) 35percent; tBuBClBr 29percent; PhN(BtBuCl)2 35percent;
