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Bannard et al.
Canadian Journal of Chemistry, 1958 , vol. 36, p. 1541,1547
sodium carbonate; 1,8-diazabicyclo[5.4.0]undec-7-ene; N-ethyl-N,N-diisopropylamine in 4-(dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran; ethyl acetate; toluene
参考文献
Peng, Ge; Gallop, Mark A.; Chernov-Rogan, Tania; Yanofsky, Stephen D.; Pelletier, Jeffrey Claude; Green, Daniel Michael
Patent: US2002/65309 A1, 2002 ;
US 20020065309 A1