Efficient syntheses of bis (1H-indol-3-yl)ethanones and bis (benzotriazolyl)ethanones via reaction of phenylglyoxals with indole or 1,H-benzotriazole in the presence B(HSO4)3in solvent-free thermal and in aqueous media conditions are discribed. The syntheses have several advantages such as: generality, short reaction time, simple experiment and work-up procedures, excellent isolated yields.
使用苯基乙酰乙酸与吲哚或1,H-苯并三氮唑在无溶剂热条件或水介质条件下,在B(HSO4)3的存在下高效合成了双(1H-吲哚-3-基)乙酮和双(苯并三氮唑基)乙酮。这些合成具有多种优点,如通用性、反应时间短、实验和工作程序简单、所得产物收率高。