A
substitution reaction occurring at position 1/ of an
allylic system, the double bond being between positions 2/ and 3/. The incoming group may be attached to the same atom 1/ as the
leaving group, or the incoming group becomes attached at the relative position 3/, with movement of the double bond from 2/3 to 1/2. For example:
(written as a
transformation ).
Source:
PAC, 1994, 66, 1077
(Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994))
on page 1082
InChI=1/C4H7Br/c1-3-4(2)5/h3-4H,1H2,2H3
InChI=1/H2O/h1H2/p-1/fHO/h1h/q-1
InChI=1/C4H8O/c1-2-3-4-5/h2-3,5H,4H2,1H3/b3-2+
InChI=1/C4H8O/c1-3-4(2)5/h3-5H,1H2,2H3
InChI=1/BrH/h1H/p-1/fBr/h1h/q-1