Ultraviolet spectra of some methoxybenzofurans and methoxycoumarilic acids was written by Andrisano, R.;Duro, F.;Pappalardo, G.. And the article was included in Bollettino Scientifico della Facolta di Chimica Industriale di Bologna in 1956.Quality Control of Methyl benzofuran-2-carboxylate This article mentions the following:
Methoxybenzofurans (I) b. 223-56°, methoxycoumarilic acids (IIA) b. 170-216°, and Me methoxycoumarilates (IIB) b. 77-101° were examined I shows 2 bands at 2600-3000 and 2100-2550 A. In IIA and IIB absorption bands occur at 2400, 2600-2900, and 2900-3100 A. In the experiment, the researchers used many compounds, for example, Methyl benzofuran-2-carboxylate (cas: 1646-27-1Quality Control of Methyl benzofuran-2-carboxylate).
Methyl benzofuran-2-carboxylate (cas: 1646-27-1) belongs to benzofurans derivatives. Benzofurans are only weakly aromatic in nature and they are cleaved by many oxidative and reductive conditions. In nature, benzofurans have occupied an important role among the plant phenols & several pharmacologically active compounds.Quality Control of Methyl benzofuran-2-carboxylate
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem