KOH in methanol; chloroform byproducts: KCl; KOH soln. in MeOH and carbazole soln. in CHCl3 stirring for 30 min at room temp. under Ar whereupon Au complex soln. in CHCl3 adding, after 30 min of stirring solvent removing in vacuo, residue extg. with CHCl3, KClfiltering off, hexane adding, concg.; identified by elem. anal. and NMR spectrum;