2-Naphthol and Iodobutane are reacted in the presence of NaOH and EtOH as the solvent to produce 2-butoxynaphthalene (an ether). This is an SN2 reaction where naphthol gets deprotonated to form an alkoxide that will react with Iodobutane. In this reaction, why is the experimental yield of 2-butoxynaphthalene so low? Are there any side reactions that might interfere with the production of the product?