反应条件
1: pyrazole-3-carboxylic acid,ethyl ester With sodium hydride in 1,4-dioxane T=20°C; 0.5 h; Inert atmosphere; 2: ethyl iodide in 1,4-dioxane T=20°C;
参考文献
Almirall, S.A.; Erra Sola, Montserrat; Aguilar Izquierdo, Nuria; Carrascal Riera, Marta; Taboada Martinez, Lorena; Navarro Romero, Eloisa; Vidal Juan, Bernat
Patent: EP2390252 A1, 2011 ;
Location in patent: Paragraph 0163; 0164; 0463; 0464 ;
EP 2390252 A1