Reduction of o-hydroxybenzaldehydes by aqueous titanium trichloride. A new route to 2-(benzofuran-2-yl)phenols
作者:Angelo Clerici、Ombretta Porta、Alberto Arnone
DOI:10.1021/jo00291a026
日期:1990.2
Efficient One-Pot Synthesis of 2-Arylbenzo[<i>b</i>]furans from 2-Styrylphenols Using CuBr<sub>2</sub>
作者:Suchitra Bhatt、Kshama Roy、Sandip K. Nayak
DOI:10.1080/00397910903318716
日期:2010.8.16
A newroute to the synthesis of 2-arylbenzo[b]furans has been developed. It involves homo/cross-McMurry coupling of salicylaldehyde/substituted salicylaldehydes/aromatic aldehydes to 2-styrylphenols, which undergo intramolecular cyclization with CuBr2 in tetrahydrofuran at ambient temperature to afford 2-arylbenzo[b]furans in good yields.