反应条件
lithium diisopropyl amide; tetrakis(triphenylphosphine) palladium(0) in tetrahydrofuran mixt. of diiodothiophene and Bu3SnC2H was stirred overnight at 70°C, NMR monitoring, after cooling to -20°C soln. of LDA was added, mixt. warmed to room temp., Pd complex was added, refluxing for 24 h; mixt. was cooled, filtered, filtrate was evapd., MeOH was added, solid was pptd., collected, washed with MeOH, dried in vac., chromd.;
参考文献
Organometallics, , vol. 20, # 21 p. 4360 - 4368
