SEARCH Articles Figures Tables Bond carbon-nitrogen Bond-forming Carbon forms Carbon intramolecular Carbon-nitrogen bond forming reactions cyclization Carbon-nitrogen bond forming reactions reaction Carbon-nitrogen bond-forming reactions Carbon-nitrogen bonds cyclizations Carbonates cyclization Cyclization reactions Cyclizations intramolecular Intramolecular bonding Intramolecular bonds Intramolecular cyclization Intramolecular reactions cyclizations Nitrogen bonds formed Nitrogen forms Reaction bond-forming