1 with dioxygen in the presence of several semiconductors including SnO2, ZrO2, and activated charcoal as catalytic mediators took place selectively to give the corresponding 2,2′-binaphthols 2 or 2,2′-binaphthyl-1,1′-quinones 3 in excellent yields without light irradiation. Among these semiconductors, the catalytic activity of SnO2 could be fully restored by appropriate reactivation treatment after
的1-
萘酚的新颖且有效的氧化二聚1与几个半导体包括SnO的存在分子氧2,的ZrO 2,和
活性炭作为催化介质发生选择性地得到相应的2,2 ' -binaphthols 2或2,2- '联
萘-1,1 ' -quinones 3以优良产率没有光照射。在这些半导体中,通过在氧化后进行适当的再活化处理,可以完全恢复SnO 2的催化活性。产品2和3 应该用作天然联
萘的合成中间体。