Orientation in acylation reactions of 2,2-dimethyl-2H-chromenes was studied. Five acetylchromenes were obtained with two methods and six formylchromenes were obtained with a third method. Demethylation of four acyl-methoxy-substituted chromenes gave the corresponding acylchromenols. 2,2-Dimethyl-2H-chromene-6-carboxylic acid (anofinic acid) was also obtained by oxidation of 6-formylchromene.
研究了 2,2-二甲基-2H-苯酰化反应中的定向。通过两种方法得到了五个乙酰基苯并通过第三种方法得到了六个甲酰基苯并。四种酰基甲氧基取代色烯的脱甲基反应得到了相应的酰基
色酚。通过 6-甲酰基色烯的氧化作用,还得到了 2,2-二甲基-
2H-色烯-6-
羧酸(anofinic acid)。