Rene, Loic et al. published their research in Bulletin de la Societe Chimique de France in 1975 |CAS: 53724-96-2

The Article related to benzofuranol formyl, demethylation methoxybenzofuran pyridine hydrochloride, quinoline demethylation solvent, Heterocyclic Compounds (One Hetero Atom): Areno- and Diarenofurans and other aspects.Formula: C13H14O4

Rene, Loic; Buisson, Jean P.; Royer, Rene published an article in 1975, the title of the article was Reactions induced by pyridinium halides. XX. First examples of dealkylation by pyridinium hydrochloride in quinoline.Formula: C13H14O4 And the article contains the following content:

Benzofuranols I-VI (R = R1 = H, R2 = H, Me) were prepared in improved yields by demethylating I-VI (R1 = Me) with pyridine-HCl in quinoline. I-VI (R1 = Me) were prepared by formylating coumarilic acid esters, hydrolyzing I-VI (R = CO2Me, CO2Et, R1 = Me), and decarboxylating I-VI (R = CO2H). The experimental process involved the reaction of Ethyl 6-methoxy-3-methylbenzofuran-2-carboxylate(cas: 53724-96-2).Formula: C13H14O4

The Article related to benzofuranol formyl, demethylation methoxybenzofuran pyridine hydrochloride, quinoline demethylation solvent, Heterocyclic Compounds (One Hetero Atom): Areno- and Diarenofurans and other aspects.Formula: C13H14O4

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem