The present invention generally relates to processes for converting acrylate esters or a derivative thereof to difluoropropionic acid or a derivative thereof. This process is generally performed using fluorine gas in a hydrofluorocarbon solvent. In particular, a process for fluorinating a double bond is disclosed. This process comprises forming a reaction mixture comprising a hydrofluorocarbon solvent, fluorine gas, and a compound of formula 1
wherein R1 is hydroxy, alkoxy, chloro, or —OC(O)CH═CH2 to form a compound of formula 2 in a yield of at least 50%
wherein R2 is hydroxy, alkoxy, chloro, —OC(O)CHFCH2F, wherein the hydrofluorocarbon solvent comprises 2H,3H-decafluoropentane and the reaction mixture further comprises a fluorination agent.
本发明一般涉及将
丙烯酸酯或其衍
生物转化为二
氟丙酸或其衍
生物的工艺。该工艺一般是在氢
氟碳溶剂中使用
氟气进行的。特别是公开了一种使双键
氟化的工艺。该工艺包括形成一种反应混合物,该混合物包括氢
氟碳溶剂、
氟气和式 1 的化合物。
其中 R1 是羟基、烷氧基、
氯或-OC(O)CH═
CH2,形成式 2 化合物,产率至少为 50
其中 R2 是羟基、烷氧基、
氯、-OC(O)CHF F,其中氢
氟碳溶剂包括 2H,3H-十
氟戊烷,反应混合物进一步包括
氟化剂。