《The chemistry of 5-oxodihydroisoxazoles. XVI. A new synthesis of pyrroles, furans, thiophenes and their benzo analogs》 was published in Australian Journal of Chemistry in 1996. These research results belong to Prager, Rolf H.; Williams, Craig M.. Application of 50551-57-0 The article mentions the following:
Et 5-oxo-2-phenyl-2,5-dihydroisoxazole-4-carboxylate was photolyzed at 300 nm in the presence of phenols, enols, anilines, enamines, aryl thiols and thioenols affording enamines. Treatment of these enamines with Lewis or protic acids gives the resp. benzo and five-membered ring systems. After reading the article, we found that the author used Ethyl 6-methoxybenzofuran-2-carboxylate(cas: 50551-57-0Application of 50551-57-0)
Ethyl 6-methoxybenzofuran-2-carboxylate(cas: 50551-57-0) belongs to benzofurans.Application of 50551-57-0Benzofurans 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