申请人:ASAHI GLASS COMPANY LIMITED
公开号:US20030212297A1
公开(公告)日:2003-11-13
The present invention provides a process whereby fluorine atom-containing sulfonyl fluoride compound(s) useful as e.g. materials for ion-exchange membranes, can be produced efficiently and at low cost without structural limitations while solving the difficulties in production.
Namely, the present invention provides a process which comprises reacting XSO
2
R
A
-E
1
(1) with R
B
-E
2
(2) to form XSO
2
R
A
-E—R
B
(3), then reacting (3) with fluorine in a liquid phase to form FSO
2
R
AF
-E
F
-R
BF
(4), and further, decomposing the compound to obtain FSO
2
R
AF
-E
F1
(5), wherein R
A
is a bivalent organic group, E
1
is a monovalent reactive group, R
B
is a monovalent organic group, E
2
is a monovalent reactive group which is reactive with E
1
, E is a bivalent connecting group formed by the reaction of E
1
with E
2
, R
AF
is a bivalent organic group formed by the fluorination of R
A
, etc., R
BF
is the same group as R
B
, etc., E
F
is a bivalent connecting group formed by the fluorination of E, etc., E
F1
is a monovalent group formed by the decomposition of E
F
, and X is a halogen atom.
本发明提供了一种过程,通过该过程,可以高效、低成本地生产含氟原子的磺酰氟化合物,例如用作离子交换膜材料,而且在解决生产困难的同时没有结构限制。换句话说,本发明提供了一种过程,包括将XSO2RA-E1(1)与RB-E2(2)反应形成XSO2RA-E—RB(3),然后将(3)与液相中的氟反应形成FSO2RAF-EF-RBF(4),进一步,分解化合物以获得FSO2RAF-EF1(5),其中RA是二价有机基团,E1是一价反应基团,RB是一价有机基团,E2是与E1反应的一价反应基团,E是由E1与E2反应形成的二价连接基团,RAF是由RA氟化形成的二价有机基团,RBF是与RB相同的基团,EF是由E氟化形成的二价连接基团,EF1是由EF分解形成的一价基团,X是卤素原子。