2-Alkoxynaphthalenes undergo halogenation with copper (II) halides in the 1-position though 2-benzyloxynaphthalene with copper (II) bromide gives additionally di-β-naphthol, 1- benzyl-2-naphthol, and benzyl bromide. The reaction of 1-alkoxynaphthalenes with copper (II) halides leads to 1-alkoxy-4-halogenonaphthalenes and 4, 4′-dialkoxy-1, 1′- binaphthyls. 8-Chloro-1-methoxynaphthalene is afurther product from the reaction of 1- ...