sodium ethanolate in tetrahydrofuran; ethanol soln. 4-ethynylpyridine and EtONa in EtOH was added to soln. ((PPh3)AuCl) in EtOH-THF (1:1) and stirred at room temp. for 5 h; solvent was evapd. to dryness, residue was recrystd. from CH2Cl2-hexane;elem. anal.;

in dichloromethane N2; solid PPh3 added to CH2Cl2 suspn. of Au compd. (1:1 molar ratio), stirerd for 1 h; filtered (Celite), concd., pptd. (Et2O), elem. anal.;