Preheat oven to 375°. In baking dish, melt butter. Roll chicken in a mixture of the flour and salt. Place the chicken, skin side down, in the pan and bake it for 30 minutes. Turn the chicken pieces. Top with the pepper, onions, olives and pineapple. Combine the soup, pineapple syrup and chili sauce. Pour over the chicken. Cover and bake 30 minutes more. Cut each roll into 4 pieces. Arrange on top of the chicken. Bake, uncovered, 15 minutes more, until the rolls are brown.