(n)BuLi in diethyl ether; hexane byproducts: LiCl, Me2S; N2-atmosphere; stirring equimolar amts. of BuLi and alkyne at 0°C, addn. of Au-complex, stirring for 30 min, addn. of Ti-complex, stirring for 2 h at 25°C; evapn., extn. (pentane), filtration (Celite), concn., cooling (0°C); elem. anal.;