Sun, Nan published the artcileZeolite-catalyzed synthesis of 2,3-unsubstituted benzo[b]furans via the intramolecular cyclization of 2-aryloxyacetaldehyde acetals, Synthetic Route of 50551-63-8, the main research area is benzofuran preparation tin exchanged zeolite catalyst cyclization aryloxyacetaldehyde acetal.
An efficient and environmentally benign heterogeneous catalytic process for the synthesis of 2,3-unsubstituted benzo[b]furans was established via the intramol. cyclization of 2-aryloxyacetaldehyde acetals. By using tin-exchanged H-β zeolite (Sn-β) as catalyst, a wide range of functionalized 2,3-unsubstituted benzo[b]furans could be prepared in good to excellent yields. The Sn-β zeolite catalyst also exhibited excellent shape selectivity on the cyclization of meta-substituted 2-aryloxyacetaldehyde acetals, and 6-substituted isomers were preferably formed up to 97% regio-selectivity. Moreover, Sn-β zeolite could be easily recovered and reused without any noticeable activity loss.
Tetrahedron published new progress about Beta zeolites Role: CAT (Catalyst Use), USES (Uses) (tin-exchanged). 50551-63-8 belongs to class benzofurans, name is 6-Methoxybenzofuran, and the molecular formula is C9H8O2, Synthetic Route of 50551-63-8.
Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem