Application of Organolithium and Related Reagents in Synthesis. XXVII.[1] Effect of the Nucleophilic Character of Silyl Enol Ethers Upon the Conversion of 3-Arylphthalides into 2-(1-Aryl-2-methoxycarbonyl) Benzoic Acids
作者:Adam Bieniek、Jan Epsztajn、Krystyna K. Kulikiewicz
DOI:10.1081/scc-120015823
日期:2003.1.4
Abstract A convenient two step protocol preparation of the ortho-alkylated (by secondary substituent with the carbomethoxy group at the end of alkyl chain) aromatic carboxylic acids 6 from benzoic acids anilides 1 was developed, which exploited the reductive alkylation of phthalides 4 with silyl vinyl ethers 5a–b or silyl ketene acetals 5c–g as a key step, is described.
摘要 利用苯甲酸苯胺 1 的邻位烷基化(通过烷基链末端的碳甲氧基的二级取代基)芳族羧酸 6 的方便两步制备方法,该方法利用了苯甲酸 4 与甲硅烷基乙烯基的还原烷基化反应。描述了醚 5a-b 或甲硅烷基乙烯酮缩醛 5c-g 作为关键步骤。