In 2019,Journal of Molecular Structure included an article by Davarpanah, Jamal; Ghahremani, Mahboubeh; Najafi, Ozhan. Formula: C8H8O2. The article was titled 《Synthesis of 1,4-dihydropyridine and polyhydroquinoline derivatives via Hantzsch reaction using nicotinic acid as a green and reusable catalyst》. The information in the text is summarized as follows:
A rapid, efficient and eco-friendly protocol has been developed for the preparation of various 1,4-dihydropyridine and polyhydroquinoline derivatives in the presence of nicotinic acid as a green and dual catalyst under solvent-free conditions. In this reaction, nicotinic acid shows a highly catalytic nature, easy to handle procedure, short reaction time, recycle exploitation and excellent isolated yields. Furthermore, the 1H and 13C chem. shift and X-ray spectra values together with the structural parameters of 1,4-dihydropyridine and polyhydroquinoline have been computed and the scaled values have been compared with the corresponding exptl. NMR and X-ray spectra. As a result, the calculated 1H and 13C chem. shift and X-ray spectra show a good agreement with the exptl. results. In the experiment, the researchers used 2-Methoxybenzaldehyde(cas: 135-02-4Formula: C8H8O2)
2-Methoxybenzaldehyde(cas: 135-02-4) is used as a flavor agent in foods including nonalcoholic/alcoholic beverages, baked goods, chewing gum, confections, frozen dairy, fruit ices, hard/soft candy, instant coffee, tea, Jams, jellies, and milk products. It also has been used to obtain good enantioselectivities using Cu(OAc)(2)-bis(oxazolines) via hydrogen bonding in asymmetric Henry reaction.Formula: C8H8O2
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem