In saucepan, combine soup, pineapple, brown sugar, cornstarch, allspice, and coriander.
Cook, stirring until thickened.
Brush chops lightly with oil.
Place on grill 4 inches above glowing coals.
Cook for 10 minutes, brushing with sauce.
Turn; continue brushing with sauce.
Cook 10 minutes more or until desired doneness.
Heat remaining sauce.