Application of Organolithium and Related Reagents in Synthesis, Part 31: Effective Conversion of 3‐Arylphthalides into 2‐(1‐Aryl‐3‐oxo‐4‐alkoxycarbonyl‐butyl)benzoic Acids
作者:Adam Bieniek、Krystyna K. Kulikiewicz、Monika M. Bartczak
DOI:10.1080/00397910600910617
日期:2006.10.1
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.
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