Isoquinolinium N-Arylimides and Strained Cycloalkenes [1]

Article abstract of DOI:10.1002/jhet.5570350324

In contrast to common alkenes and enol ethers, the angle-strained double bonds of norbornene, dimethyl norbornadiene-2,3-dicarboxylate, and acenaphthylene undergo [3+2] cycloadditions with isoquinolinium N-arylimides. The structures of the crystalline adducts have been elucidated from their ¹H nmr spectra.