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 keteneacetals 5c–g as a key step, is described.