Sapkal, Suryakant B.; Shelke, Kiran F.; Shingate, Bapurao B.; Shingare, Murlidhar S. published their research in Chinese Chemical Letters on December 31 ,2010. The article was titled 《An efficient synthesis of benzofuran derivatives under conventional/non-conventional method》.Formula: C12H12O4 The article contains the following contents:
1-Methyl-3-Et imidazolium bromide [meim]Br/basic alumina (Al2O3) has been found to promote the cyclocondensation of chloroacetone/chloroethyl acetate with salicylaldehydes under conventional as well as microwave irradiation to yield benzofuran derivatives, e.g. I (R = Me, OEt). In the part of experimental materials, we found many familiar compounds, such as Ethyl 6-methoxybenzofuran-2-carboxylate(cas: 50551-57-0Formula: C12H12O4)
Ethyl 6-methoxybenzofuran-2-carboxylate(cas: 50551-57-0) belongs to benzofurans.Formula: C12H12O4Benzofurans containing one furan ring that have been implicated as psychoactive recreational drugs include 6-(2-aminopropyl)benzofuran (6-APB), 5-(2-aminopropyl)benzofuran (5-APB), 5-(2-ethylaminopropyl)benzofuran (5-EAPB), and 5-methylaminopropylbenzofuran (5-MAPB).
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem