G. Litkei et al., REACTION OF CHALCONES WITH NBS, A SIMPLE ONE-POT SYNTHESIS OF 2-AROYLBENZO[B]FURANES, Synthetic communications, 26(16), 1996, pp. 3061-3074
A simple one pot synthesis of 2-aroylbenzo[b]furanes has been achieved
by bromomethoxylation with NBS and subsequent treatment of the approp
riately substituted 2-hydroxychalcones with sodium hydroxide.