Fig. 3: Substrate scope for syn-dichlorination of allylic naphthalimides.

Yields of the isolated materials after column chromatography are given, and diastereomeric ratios (dr) were determined by 1H NMR analysis of the purified materials, unless noted otherwise. aAnalysed by 1H NMR spectroscopy of the crude mixture with an internal standard. bContaminated by chlorohydrins (15%). cContaminated by unidentified compounds (34–40%). dContaminated by chloroalkenes (6%). (Npth 1,8-naphthaloyl).