A @[email protected] resulting in a single reaction product from two or three reacting chemical species, with formation of two new chemical @[email protected] to the same atom in one of the reactant @[email protected] The synonymous term 1/1/addition is also used. For example: (This particular example can also be viewed as an @[email protected] reaction.) In inorganic chemistry such α-addition reactions, generally to a metallic @[email protected], are known as 'oxidative additions'. α-Addition is the reverse of α[email protected]@ or 1/1/@[email protected]