Ester-Directed Regioselective Borylation of Heteroarenes Catalyzed by a Silica-Supported Iridium Complex was written by Kawamorita, Soichiro;Ohmiya, Hirohisa;Sawamura, Masaya. And the article was included in Journal of Organic Chemistry in 2010.Quality Control of Methyl benzofuran-2-carboxylate This article mentions the following:
The ester-directed regioselective borylation of arenes catalyzed by a silica-supported monophosphine-Ir complex displayed a significantly broad substrate scope toward heteroaromatic compounds, including thiophene, pyrrole, furan, benzothiophene, benzofuran, indole, and carbazole derivatives The regioselectivity is complementary to the selectivities observed in the heteroarene C-H borylation with the dtbpy-Ir catalyst system. 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 compounds with a planar structure having 10 pi electrons that include the lone pair on oxygen atom, which makes it more susceptible to electrophilic attack. 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