in hexane (Ar); std. Schlenk technique; soln. of Me3Al in hexane was slowly added over 5 min to stirred soln. of phenol in hexane; soln. was stirred at 25°C for 1 h; evapd. in vac. overnight;

[(C6H5)3C][B(C6F5)4] in further solvent(s) (N2 or Ar); Ti complex reacted with B complex and Al2(CH3)6 in C6(2)H5Br, ligand added, reacted for 2 h; not isolated, detected by NMR;

in hexane addn. of Me3Al in hexane to a soln. of 2,6-di-t-butyl-4-methylphenol in degassed hexane at room temp. under Ar (white ppt.); react. for 1 h; heating until the ppt. redissolves in hexane; storing resulting soln. for 3 h; crystn.; filtration in an argon box;

1-(trimethylsilyloxy)-1-cyclohexene 1.) CH2Cl2, -78 deg C, 15 min, 2.) a) CH2Cl2, -78 deg C, 1 h, b) -40 deg C, 4 h; Yield given. Multistep reaction. Yields of byproduct given;

in toluene Kinetics; Cp2Zr((13)CH3)2 combined with 10-20 fold excess of aluminium compound; not isolated; monitored by 13C NMR;