The hydroxy-o-terphenylcarboxylic acid esters 6a–f have been prepared by benzannulation of the 5,6-diaryl-3-methoxycarbonylhexa-3,5-dienoic acids 5a–f using triethylamine–ethyl chloroformate. The application of this new synthesis of triphenylenes is illustrated through the synthesis of 2-methoxycarbonyl-6,7,10,11-tetramethoxytriphenylene 9.
羟基-o-三
苯甲酸酯6a–f是通过使用
三乙胺-
氯仿酸
乙酯对5,6-二芳基-3-甲氧基羧基六烯酸5a–f进行苯环化反应合成的。这种新型三苯烯合成方法的应用通过合成2-甲氧基羧基-6,7,10,11-四甲氧基三苯烯9得以展示。