1: With isopropylmagnesium chloride in tetrahydrofuran; diethyl ether T=-20 - 0°C; 0.5 h; Inert atmosphere; 2: With boron trifluoride diethyl etherate in tetrahydrofuran; diethyl ether T=-50 - 20°C; 1 h; Inert atmosphere;

CH(CH3)2MgCl in tetrahydrofuran 1. CH(CH3)2MgCl, C6H3Br(CF3)2, THF (-20°C to 0°C), 1/3 BF3*O(C2H5)2 (-50°C to room temp.); high vac. sublimation (80°C, 1E-6 mbar); elem. anal.;

in benzene refluxing 10 min;

in benzene-d6 byproducts: sodium triflate; (inert atm.); addn. of boron compd. to a soln. of platinum complex in C6D6; filtration, concn., crystn., X-ray diffraction;