Visible light-promoted synthesis of 4,6a-dihydropyrrolo[3,4-c]pyrrole-1,3(2H,3aH)-diones via [3+2] cycloaddition reaction of 2H-azirines with maleimides

Diastereoselective synthesis of pyrrolo[3,4- c ]pyrrole-1,3-dione derivitives from 2 H -azirines and N -substituted maleimides through an efficient and environmentally friendly visible light-induced cycloaddition reaction.