Multicomponent Synthesis of Luminescent Iminoboronates

Molecules. 2020 Dec 21;25(24):6039. doi: 10.3390/molecules25246039.

Abstract

A family of iminoboronates was prepared through a one-pot multicomponent reaction, starting from boronic acid, anthranilic acid, and different salicylaldehydes. Their synthesis was straightforward and the complexes were obtained in good to excellent yields. Their photophysical properties were assessed in a diluted solution, and the complexes proved to be faintly luminescent. These chelates demonstrated remarkable Aggregation-Induced Emission Enhancement, which was rationalized using crystal structures.

Keywords: 2-hydroxybenzaldehydes; aggregation-induced emission enhancement; anthranilic acid; fluorescence; phenylboronic acid.

MeSH terms

  • Aldehydes / chemistry*
  • Boronic Acids / chemistry*
  • Fluorescent Dyes / chemistry*
  • Luminescence
  • ortho-Aminobenzoates / chemistry*

Substances

  • Aldehydes
  • Boronic Acids
  • Fluorescent Dyes
  • ortho-Aminobenzoates
  • anthranilic acid
  • salicylaldehyde