A
chemical reaction of two or more reacting
molecular entities, resulting in a single reaction product containing all atoms of all components, with formation of two chemical bonds and a net reduction in bond multiplicity in at least one of the reactants. The reverse process is called an
elimination reaction. The addition may occur at only one site (
α-addition, 1/1/addition), at two adjacent sites (1/2/addition) or at two non-adjacent sites (1/3/- or 1/4/addition, etc.). For example:
If the
reagent or the source of the addends of an addition are not specified, then it is called an addition
transformation.
Source:
PAC, 1994, 66, 1077
(Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994))
on page 1081
InChI=1/C4H6/c1-3-4-2/h3-4H,1-2H2
InChI=1/C4H6Br2/c5-3-1-2-4-6/h1-2H,3-4H2/b2-1-
InChI=1/C4H6Br2/c1-2-4(6)3-5/h2,4H,1,3H2
InChI=1/p+1/fH/q+1
InChI=1/BrH/h1H/p-1/fBr/h1h/q-1
InChI=1/C4H8/c1-4(2)3/h1H2,2-3H3
InChI=1/C4H9Br/c1-4(2,3)5/h1-3H3
