作者:T. I. Briggs、G. G. S. Dutton、E. Merler
DOI:10.1139/v56-113
日期:1956.7.1
Phenyl isobutyrate has been found to undergo a normal Fries rearrangement with anhydrous aluminum chloride at 140 °C. to give a mixture of 2-hydroxy-(40%) and 4-hydroxy-isobutyrophenone (11%). When the reaction was carried out in nitrobenzene solution at room temperature the 4-isomer was formed in 86% yield. Methylation of these compounds furnished 2- and 4-methoxy-isobutyrophenone, identical with
已发现异丁酸苯酯与无水氯化铝在 140 °C 下发生正常的 Fries 重排。得到 2-羟基-(40%) 和 4-羟基-异丁苯酮 (11%) 的混合物。当反应在室温下在硝基苯溶液中进行时,4-异构体的产率为 86%。这些化合物的甲基化提供 2- 和 4- 甲氧基异丁苯酮,与通过苯甲醚直接酰化获得的化合物相同。羟基异丁苯酮的还原也通过苯酚的直接酰化制备,提供了异丁基苯酚的替代途径。每个甲氧基酮的取向通过氧化成相应的酸来验证。