反应条件
sodium amalgam; LiNMe2 in n-heptane; pentane under inert atm. to soln. BCl3 in heptane at 0°C soln. catechol in pentane was added, stirred 0.5 h at 0°C and 1 h at room temp., solvent was evapd, residue was dissolved in toluene, Na/Hg amalgam was adde and heated at 90°C for 6 h; soln. was filtered, pinacol was added, soln. was stirred at room temp. for 1 h, solvent was evapd., Et2O was added, LiNMe2 in Et2O was added slowly, solvent was evapd., chromy. on alumina;
参考文献
Organometallics, , vol. 22, # 2 p. 365 - 369
