N-Aminophthalimide (0.01 mol) was stirred with dry dichloromethane (15 mL/g), and the olefin (0.011 mol) was added. Lead tetraacetate (0.012 mol) was then added to the stirred suspension at 5-10" C during 10 min. After being stirred for a further 15 min, the reaction mixture was fitered, and the residue was washed with dichloromethane. The combined filtrate was then washed sequentially with water and with a saturated solution of sodium ...
