title: [Intramolecular cyclizations of acetylene ketones using Lewis acids].
mesh_terms: D000114:Acetylene / Q000031:analogs & derivatives*; D055598:Chemical Phenomena; D002621:Chemistry; D003500:Cyclization; D006863:Hydrogen-Ion Concentration; D007659:Ketones
chemical_list: D007659:Ketones; D000114:Acetylene
vernacular_title: Intramolekulare Cyclisierungen von Acetylenketonen mit Lewis-Säuren