Table 2. Cyclization of Aryl and Heteroaryl Enones with the Heterogeneous Gold Catalyst [Au]^a.

^aReaction conditions: AuCl₃ (1 mol %)/AgSbF₆ (2 mol %), premixed prior to reaction, CH₂Cl₂ or toluene, rt unless otherwise indicated, minimal light conditions.

^bReactions monitored using thin layer chromatography.

^cIsolated yields.

^dReactions at 80 °C.

^eReaction at 60 °C.

^f10 mol % catalyst. PMP = para-methoxyphenyl, TMS = trimethylsilyl, TMP = 2,4,6-trimethoxyphenyl.