caesium carbonate; tetrabutylammomium bromide in tert-butyl methyl ether T=50°C;
参考文献
Xu, Feng; Kim, Mary M.; Kohmura, Yoshinori; Sladicka, Tricia; Rosen, Jonathan D.; Zacuto, Michael J.
Patent: US2009/187028 A1, 2009 ;
Location in patent: Page/Page column 7 ;