Phthalimides as Electron Acceptors

N-Substituted phthalimides are easily synthesized via solvent-free condensation of phthalic anhydrides with amines or via coupling methods [3]. The phthalimide moiety has a reversible reduction potential in dimethylformamide (DMF) which is 

Moreover, styrylalkyl-N-substituted phthalimides undergo medium to macro ring photocyclomerization via electron transfer between the arylalkenyl and the imide 

---