苯并异吡喃鎓四氟硼酸盐是新近发现的一类新型有机盐,具有对空气和潮气的较高稳定性,同时保持苯并异吡喃鎓盐的高反应活性.研究了苯并异吡喃鎓四氟硼酸盐在几种铁盐和铁配合物催化剂存在下与过氧化氢之间的氧化反应行为,发现了一类具有特色的经高价铁物种催化氧化O—H键引发的自由基双分子偶联反应.本工作对该反应的条件进行了优化研究,对反应产物和主要副产物的形成机理进行了探讨. Benzopyrylium tetrafluoroborate is a newly discovered class of new organic salts with high stability to air and moisture while maintaining the high reactivity of benzisopyranium salts. The isopyrylium tetrafluoroborate oxidation reaction with hydrogen peroxide in the presence of several iron salt and iron complex catalysts has been found to be a class of characteristic O-H bond initiated by the catalytic oxidation of high-valent iron species Of the free radical bimolecular coupling reaction.In this work, the conditions of the reaction were optimized and the formation mechanism of the reaction products and the major by-products were discussed.