A type of cyclic rearrangement (or its converse) in which a sigma bond is formed between two terminal carbon atoms of a conjugated molecule, resulting in a decrease of one in the number of pi bonds present. Electrocyclic reactions can be described by either Woodward–Hoffmann frontier-orbital theory or the Woodward–Hoffmann rules.
Electrocyclic reaction
- focusing
- focusing((in animal physiology))
- focus, optical
- focus, orbital
- fodinichnia
- Fodor, Jerry Alan (1935–2017)
- foehn wall
- foehn wind
- foetus
- fog
- foid
- foidolite
- foil capacitor
- Fokker–Planck equation
- folacin
- fold
- fold-and-thrust belt
- fold angle
- fold axis
- fold belt
- folded dipole
- folder
- folding
- folding frequency
- fold limb