Cationic gold(I) complexes catalyze the cycloisomerization of oxo-1,5-enynes to form oxatricyclic derivatives through an intramolecular Prins reaction.
![Gold-catalyzed cyclization of oxo-1,5-enynes](https://www.iciq.org/wp-content/uploads/2014/03/Gold-catalyzed-cyclization_49.jpg)
Cationic gold(I) complexes catalyze the cycloisomerization of oxo-1,5-enynes to form oxatricyclic derivatives through an intramolecular Prins reaction.