| Literature DB >> 16901148 |
Yan-Chao Wu1, Li Liu, Hui-Jing Li, Dong Wang, Yong-Jun Chen.
Abstract
A reversal of the standard regiochemistry of the Skraup-Doebner-Von Miller quinoline synthesis was observed when anilines were condensed with gamma-aryl-beta,gamma-unsaturated alpha-ketoesters in refluxing TFA. The reaction is proposed to involve 1,2-addition of the anilines to gamma-aryl-beta,gamma-unsaturated alpha-ketoesters to form Schiff's base adducts, followed by cyclization and oxidation. The products were unambiguously shown to the 2-carboxy-4-arylquinolines by spectroscopy and X-ray crystallographic analysis.Entities:
Year: 2006 PMID: 16901148 DOI: 10.1021/jo060290n
Source DB: PubMed Journal: J Org Chem ISSN: 0022-3263 Impact factor: 4.354