KBr; SO2 in water under N2, chlorauric acid and KBr were dissolved in cold water, freshlyprepared aq. soln. of SO2 was added dropwise, cooled to 10-15°C,soln. of phenylacetylene in acetone was added at this temp., neutralized to pH 6.5-7 (aq. K2CO3); filtered, washed with acetone, dried in vac.;

(C2H5)3N in not given (dark); addn. of Au complex to PhCCH in presence of Et3N; Vicente, J. etal. Inorg. Chim. Acta 2003, 347, 67-74; Siemling, U. et al. Organometal lics 2008, 27 (24), 6419-6426; Vicente, J. et al. Organometallics 2005, 24 (24), 5956-5963;

in chloroform-d1 byproducts: [(CH3)2NC6H4NH][O3SC6H4CH3], C5H5N; (dark); treatment of soln. of Au complex (1 equiv.) in CDCl3 with S compd. (1 equiv.); filtration, NMR;