申请人:TOSOH F-TECH, INC.
公开号:US10087147B2
公开(公告)日:2018-10-02
Provided are 5-(trifluoromethyl)pyrimidine derivatives useful as intermediates for pharmaceuticals and agrochemicals and as intermediates for electronic materials and methods for producing the same. 2,4-dichloro-5-(trifluoromethyl)pyrimidine is reacted with 2,2,2-trifluoroethanol, benzyl alcohol, or benzenethiol to obtain the intended 2-(2,2,2-trifluoroethoxy)-4-chloro-5-(trifluoromethyl)pyrimidine, 2-benzyloxy-4-chloro-5-(trifluoromethyl)pyrimidine, 2,4-bis(2,2,2-trifluoroethoxy)-5-(trifluoromethyl)pyrimidine, or 2-chloro-4-phenylthio-5-(trifluoromethyl)pyrimidine.
本发明提供了可用作医药和农用化学品中间体以及电子材料中间体的 5-(三氟甲基)嘧啶衍生物及其生产方法。2,4-二氯-5-(三氟甲基)嘧啶与 2,2,2-三氟乙醇、苄醇或苯硫酚反应,得到所需的 2-(2,2,2-三氟乙氧基)-4-氯-5-(三氟甲基)嘧啶、2-苄氧基-4-氯-5-(三氟甲基)嘧啶、2,4-双(2,2,2-三氟乙氧基)-5-(三氟甲基)嘧啶或 2-氯-4-苯硫基-5-(三氟甲基)嘧啶。