The present invention provides a process for producing a fluorinated sulfonyl fluoride useful as e.g. a material for an ion exchange resin, and a novel chemical substance useful as an intermediate in the production process.
That is, to provide a process comprising oxidizing Y—S—R
A
-E-R
B
by means of an oxidizing agent essentially containing a halogen atom to obtain XSO
2
—R
A
-E-R
B
, and in a case that X is a fluorine atom, reacting the compound with fluorine in a liquid phase as it is, and in a case that X is a halogen atom other than a fluorine atom, converting X into a fluorine atom, and then reacting the obtained compound with fluorine in a liquid phase to obtain FSO
2
—R
AF
-E
F
-R
BF
, and then decomposing it to obtain FSO
2
—R
AF
—COF (wherein R
A
is a bivalent organic group such as an alkylene group, R
B
is a monovalent organic group such as a perfluoroalkyl group, E is —CH
2
OCO—, Y is a monovalent organic group such as a cyano group or the like, X is a halogen atom, R
AF
is a bivalent organic group having R
A
fluorinated or the like, R
BF
is the same group as R
B
or the like, and E
F
is —CF
2
OCO—).
本发明提供了一种制备
氟磺酰
氟的方法,该
氟磺酰
氟可用作离子交换
树脂的材料,以及一种在生产过程中用作中间体的新型
化学物质。即提供一种方法,包括用含有卤素原子的氧化剂氧化Y-S-RA-E-RB以得到XSO2-RA-E-RB,当X为
氟原子时,将化合物与液相中的
氟反应,当X为除
氟原子以外的卤素原子时,将X转化为
氟原子,然后将所得化合物与液相中的
氟反应以得到FSO2-RAF-EF-RBF,然后分解它以得到FSO2-RAF-COF(其中RA是双价有机基团,如烷基,RB是单价有机基团,如
全氟烷基,E是-CH2OCO-,Y是单价有机基团,如
氰基或类似物,X是卤素原子,RAF是具有RA
氟化或类似物的双价有机基团,RBF是与RB相同的基团或类似物,EF是-
CF2OCO-)。