SEARCH Articles Figures Tables 2-amino-4H-pyran-annulated heterocycles Annulated Five-Membered Heterocycles with One Heteroatom Annulated Five-Membered Heterocycles with Two Heteroatoms Annulated Three- and Four-Membered Heterocycles Heterocycle-annulated NHCs Heterocycles imidazo-annulated Heterocyclic annulated pyridines Nucleophilic Cyclizations with Annulated Fluorinated Heterocyclic Rings Pyran annulated heterocycles