1-naphthols 1 with dioxygen in the presence of a semiconductor, such as SnO2, ZrO2, or activated charcoal, as a catalytic mediator takes place selectively to give the corresponding 2,2′-binaphthols 2 or 2,2′-binaphthyl-1,1′-quinones 3 in excellent yields without light irradiation. The catalytic activity of SnO2 could be fully restored by appropriate reactivation treatment after the oxidation. In addition
                                    在半导体(例如SnO 2,ZrO 2或
活性炭)存在下,作为催化剂的1-
萘酚1用双氧氧化二聚反应选择性地产生相应的2,2'-联
萘酚2或2,2 ′-联
萘-1,1′-醌3在没有光照射的情况下具有优异的收率。氧化后,通过适当的再活化处理,可以完全恢复SnO 2的催化活性。另外,不具有双氧的SnO 2催化烯醇醚3至4的选择性O-脱甲基化。