Application of Organolithium and Related Reagents in Synthesis, Part 29 [1]. A Concise Regiospecific Conversion of Benzoic Acids into 5-(2-Carboxyphenyl)-5-phenylpent-2-enoic Acids
作者:Adam Bieniek、Jan Epsztajn、Krystyna K. Kulikiewicz
DOI:10.1007/s00706-003-0076-3
日期:2004.1.1
carbon atoms alkyl chain) aromatic carboxylic acids from benzoic acids anilides is described. Ortho -lithiation of benzanilides and subsequent reaction of the generated bis( N - and C - ortho -)-lithiated anilides with aromatic aldehydes provided 3-arylphthalides. In the next step, these phthalides were converted into 5-(2-carboxyphenyl)-5-phenylpent-2-enoic acids by treatment with 1-methoxy-1-trimethylsilyloxybuta-1