A visible-light photoredox-catalyzed oxidation/[3+2] cycloaddition/oxidative aromatization
cascade reaction of [(3,4-dihydroisoquinolin-2(1H)-yl)methyl]phosphonates and activated olefins or alkynes for the efficient synthesis
of potentially biological active pyrrolo[2,1-a]isoquinoline-substituted phosphonates was developed. This transformation features
mild reaction conditions (i.e., visible light irradiation, room temperature), molecular
oxygen (O2) as a green oxidant, simple ‘one-pot’ operation.
Key words
visible light catalysis - [3+2] cycloaddition - pyrrolo[2,1-
a]isoquinoline - phosphonate - cascade reaction