Abstract
4-(4-Formyl-3-hydroxyphenoxy)phthalonitrile (3) and its condensation product with 2-aminophenol have been synthesized to reach 4-(3-hydroxy-4-(((2- hydroxyphenyl)imino)-methyl)phenoxy)phthalonitrile (5), a tridentate ligand possessing ONO binding sites. Subsequent condensation of phenylboronic acid with 5 afforded a novel boronic ester of a Schiff base with a phthalonitrile group (7). Boronate 7 displays high stability and can be handled in air due to the presence of coordinative B-N and covalent B-O bonds in its structure. The novel compounds were characterized by elemental analyses, IR, UV-vis, mass, 1H-, 13C- and 11B NMR spectra.
Original language | English |
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Pages (from-to) | 87-91 |
Number of pages | 5 |
Journal | Journal of Organometallic Chemistry |
Volume | 699 |
DOIs | |
Publication status | Published - 15 Feb 2012 |
Keywords
- Boronate complex
- Phenylboronic acid
- Phthalonitrile
- Schiff's base