作者:Richard C Larock、Dawei Yue
DOI:10.1016/s0040-4039(01)01149-2
日期:2001.8
2,3-Disubstituted benzo[b]thiophenes are readily prepared in excellent yields under very mild reaction conditions by the Pd/Cu-catalyzed cross-coupling of commercially available o-iodothioanisole and terminal alkynes, followed by electrophilic cyclization by I2, Br2, NBS, p-O2NC6H4SCl or PhSeCl.
2,3-二取代的苯并[ b ]噻吩在很温和的反应条件下,可通过Pd / Cu催化的可商购的邻碘碘苯甲醚和末端炔烃的交叉偶联,然后通过I 2,Br 2,NBS,p -O 2 NC 6 H 4 SCl或PhSeCl。