To provide a method for producing a difluoro compound highly selectively in good yield without forming a hardly soluble by-product. An ester compound of the formula (1) is reacted and fluorinated with an electrophilic fluorinating agent in the presence of a basic compound and in the absence of a metal compound reactant to produce a difluoro ester compound of the formula (2).
wherein R
1
is a C
1-30
alkyl group which may have a substituent, etc., and R
2
is a C
1-30
hydrocarbon group which may have a substituent, or R
1
and R
2
are bonded to form an alkylene group which forms, together with —C—C(O)—O—, a lactone ring.
提供一种高选择性,高产率地生产二
氟化合物的方法,同时避免产生难溶性副产物。通过在碱性化合物存在且
金属化合物反应物不存在的情况下,使用式(1)的酯化合物与亲电
氟化试剂反应和
氟化,从而产生式(2)的二
氟酯化合物。其中,R1是C1-30烷基,可以具有取代基等;R2是C1-30烃基,可以具有取代基,或者R1和R2结合形成一个与—C—C(O)—O—一起形成内酯环的亚烷基基团。