A @[email protected] in which @[email protected] reorganization of bonding takes place throughout a cyclic array of continuously bonded atoms. It may be viewed as a reaction proceeding through a fully @[email protected] cyclic @[email protected] The number of atoms in the cyclic array is usually six, but other numbers are also possible. The term embraces a variety of processes, including @[email protected], @[email protected], @[email protected], @[email protected], etc. (provided they are concerted).
See also:
multi-centre reaction
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1150 [Terms] [Paper]