反应条件
1: 2,5-dibromo-pyridine With n-butyllithium in tetrahydrofuran; hexane; toluene
T=-78°C;
2: ethyl-α,α,α-trifluoroacetate in tetrahydrofuran; hexane; toluene
T=-78°C; 0.5 h;
参考文献
Curtis, Michael; Duclos, Brian A.; Ewin, Richard A.; Johnson, Paul D.; Johnson, Timothy Allen; Vairagoundar, Rajendran; Billen, Denis; Goodwin, Richard M.; Haber-Stuk, Andrea K.; Kyne, Graham M.; Sheehan, Susan M. K.
Patent: US2013/237502 A1, 2013 ;
Location in patent: Paragraph 0397 ;