反应条件
1: phosphorus tribromide / tetrahydrofuran / 1.5 h / |Cooling with ice
2: sodium cyanide / N,N-dimethyl-formamide / 19 h / 20 °C
3: potassium hydroxide; water / 4 h / |Reflux
4: potassium carbonate; caesium carbonate / N,N-dimethyl-formamide / 14 h / 20 °C / |Cooling with ice
View Scheme
参考文献
Nissan Chemical Industries, Ltd.; Nishino, Taito; Miyaji, Katsuaki; Iwamoto, Shunsuke; Mikashima, Takumi; Saruhashi, Koichiro; Kishikawa, Yo
Patent: US2013/253204 A1, 2013 ;