Hexahelicene (1) undergoes photooxidation in the presence of molecular oxygen only in acidic solvents such as acetic acid. In dilute solutions, this oxidation affords the vicinal trans-acetoxy alcohol 3 through what seems to be an exciplex protonation mechanism.
六六烯(1)仅在酸性溶剂(如
乙酸)中在分子氧存在下经历光氧化。在稀溶液中,这种氧化通过似乎是激基复合物的质子化机理提供了邻位的反式-乙酰氧基醇3。