n-butyllithium in tetrahydrofuran; hexane byproducts: LiCl; n-butyllithium in hexane was added dropwise to a soln. of bithiophene inTHF at -78°C with stirring in N2, the mixt. was warmed to room t emp., stired for 1 h, Sn-compound was added, the mixt. was heated to reflux for 1 h, cooled to room temp.; n-hexane was added, the organic layer was washed with aq. Na2CO3 and water, dried over MgSO4, evapd. in vac.;
参考文献
Huang, Jia; Miragliotta, Joseph; Becknell, Alan; Katz, Howard E.
Journal of the American Chemical Society, 2007 , vol. 129, # 30 p. 9366 - 9376
1: 2-(thien-2-yl)thiophene With n-butyllithium in tetrahydrofuran T=-78 - 20°C; 4 h; 2: With boric acid trimethyl ester in tetrahydrofuran 2 h; 3: 2,3-dimethylbutane-2,3-diol in tetrahydrofuran 12 h; Further stages.;
参考文献
Journal of Organic Chemistry, , vol. 67, # 25 p. 8877 - 8884
AlCl3; Me2NTol in dichloromethane 1:1 mixt. of BCl3 and AlCl, pinacol (2.3-3.0 equiv.) and lutidine (15 equiv.) for 18 h;
参考文献
Del Grosso, Alessandro; Helm, Matthew D.; Solomon, Sophia A.; Caras-Quintero, Dolores; Ingleson, Michael J.
Chemical Communications, 2011 , vol. 47, # 46 p. 12459 - 12461
