In organic chemistry, an imine (/ɪˈmiːn/ or /ˈɪmɪn/) is a functional group or organic compound containing a carbon–nitrogen double bond (C=N). The nitrogen atom can be attached to a hydrogen or an organic group (R). The carbon atom has two additional single bonds.[1][2] Imines are common in synthetic and naturally occurring compounds and they participate in many reactions.[3]
Distinction is sometimes made between aldimines and ketimines, derived from aldehydes and ketones, respectively.