A process for preparing a fluorine-containing alkoxyalkane represented by the general formula (1) R
1
—O—R
2
—O—R
3
where at least one of R
1
, R
2
and R
3
contains one or more fluorine atoms. An alcohol with the highest acidity selected from the group consisting of the compounds represented by the general formula (2) R
1
—OH, the general formula (3) R
3
—O—R
2
—OH, the general formula (4) R
1
—O—R
2
—OH, and the general formula (5) R
3
—OH is reacted with at least one selected from the group consisting of the compounds represented by the general formula (6) Lg-R
2
—O—R
3
, the general formula (7) Lg-R
1
, the general formula (8) Lg-R
3
, and the general formula (9) Lg-R
2
—O—R
1
where Lg represents an anionic leaving group in the presence of a basic compound.
                            一种制备含氟烷氧烷的方法,其通式表示为(1)R1—O—R2—O—R3,其中R1、R2和R3中至少有一个含有一个或多个
氟原子。从通式表示的化合物群中选择酸性最高的醇,该化合物群包括通式(2)R1—OH,通式(3)R3—O—R2—OH,通式(4)R1—O—R2—OH和通式(5)R3—OH中的至少一种,与通式表示的化合物群中的至少一种反应,该化合物群包括通式(6)Lg-R2—O—R3,通式(7)Lg-R1,通式(8)Lg-R3和通式(9)Lg-R2—O—R1,其中Lg代表存在碱性化合物的情况下的阴离子离去基团。