Synthesis of aromatic azomethines by condensation of substituted benzaldehydes with 4-aminophenylene-N-imide of maleopimaric acid was written by Dikusar, E. A.;Bei, M. P.;Yuvchenko, A. P.;Potkin, V. I.. And the article was included in Russian Journal of General Chemistry in 2010.Quality Control of 4-Formyl-2-methoxyphenyl isobutyrate This article mentions the following:
The synthesis of aromatic azomethines, e.g., I by condensation of substituted benzaldehydes of vanillin series with 4-aminophenylene-N-imide of maleopimaric acid is presented. In the experiment, the researchers used many compounds, for example, 4-Formyl-2-methoxyphenyl isobutyrate (cas: 20665-85-4Quality Control of 4-Formyl-2-methoxyphenyl isobutyrate).
4-Formyl-2-methoxyphenyl isobutyrate (cas: 20665-85-4) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Quality Control of 4-Formyl-2-methoxyphenyl isobutyrate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics