ortho‐alkylated (long‐chain substituent with terminal methylcarbonyl or acetoacetate moiety) aromatic carboxylic acids 15 or 16 from benzoic acids anilides 10 was developed, which exploited the reductive alkylation of phthalides 13 with dimethyl‐6‐methylene‐4‐(trimethoxysiloxy)‐1,3‐diox‐4‐ene (9) as a key step.
摘要 利用
苯甲酸苯胺 10 的邻烷基化(带有末端甲基羰基或
乙酰乙酸酯部分的长链取代基)芳族
羧酸 15 或 16 的方便的三步方案制备,该方法利用了
苯甲酸 13 与二甲基- 6-亚甲基-4-(
三甲氧基甲
硅烷氧基)-1,3-二恶-4-烯 (9) 作为关键步骤。