The synthesis and complexation study of some novel 3-methoxyphenyl chromenone crown ethers using conductometry


Gunduz C., Salan U. , Ozkul N., Basaran I., Cakir U., Bulut M.

DYES AND PIGMENTS, vol.71, no.3, pp.161-167, 2006 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 71 Issue: 3
  • Publication Date: 2006
  • Doi Number: 10.1016/j.dyepig.2005.06.021
  • Title of Journal : DYES AND PIGMENTS
  • Page Numbers: pp.161-167

Abstract

7,8-Dihydroxy-3-(3,4-dimethoxyphenyl)-2H-chromenoiies, 7,8-diliydroxy-3-(3,5-dimethoxyphenyl)-2H-chromenones and 7,8-dihydroxy-3-(3,4,5-trimethoxypheiiyl)-2H-chromenones, o-diliydroxy-3-iiiethoxyphenyicoumarins, were prepared from 2,3,4-trihydroxybenzaldehyde and corresponding methoxyphenylacetic acid in NaOAc/Ac2O, respectively. 3-Methoxyphenyl-7,8-dihydroxy-2H-chromenone reacted with the polyethylene glycol ditosylate or dichloride in CH3CN/alkali carbonate to afford [12]crown-4, [15]crown-5 and [18]crown-6-chromonones.