in dichloromethane byproducts: AgCl; to a suspn. of Ag-salt in CH2Cl2 was added dropwise a soln. of B-complex in CH2Cl2 with stirring at -78°C, stirred for 1 h under N2; AgCl was removed, solvent stripped from filtrate at room temp., ppt. was kept for 2 h under high vac.; elem. anal.;

(i) nBuLi, hexane, (ii) /BRN= 1071433/; Multistep reaction;

(i) nBuLi, hexane, (ii) /BRN= 1071433/; Multistep reaction;

(i) nBuLi, hexane, (ii) /BRN= 1071433/; Multistep reaction;

nBuLi in hexane N2 atmosphere, addn. of soln. nBuLi, to soln. of silyl compound at 0°C, stirring (room temp., 14 h), reflux (2 h), addn. of soln. of diazaborolidine at -30°C, stirring (room temp., 14 h); removement of insoluble material under N2 atmosphere, removement of volatiles (reduced pressure), distillation at 40°C (1E-2 Torr), isolation of byproduct by sublimation at 100°C (1E-3 Torr); elem. anal.;