The methylene chloride solution at the end of the reaction period may contain a variety of materials (unreacted allyl bromide or naphthol, phase transfer catalyst, and allyl 2-naphthyl ether). what happens to the naphthol and phase transfer catalyst when the product is passed through the silica gel mini-column with methylene chloride? (hint: remember that the silica gel contains many si-oh groups and is very polar)