Method for manufacturing fluoroalcohol

Details Method for manufacturing fluoroalcohol Method for manufacturing fluoroalcohol

1999-09-13

2001-09-25

O'Sullivan, Peter (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S904000

Reexamination Certificate

active

06294704

ABSTRACT:

FIELD OF THE INVENTION
The invention relates to a method for manufacturing a fluoroalcohol represented by formula (1)
H(CFR
1
CF
2
)
n
CH
2
OH  (1)
wherein R
1
represents F or CF
3
, when n=1; R
1
represents F, when n=2.
BACKGROUND ART
With respect to a method for manufacturing H(CF
2
CF
2
)
n
CH
2
OH (n=1,2), Japanese Unexamined Patent Publication 154707/1979 and U.S. Pat. No. 2,559,628 disclose that a telomer mixture comprising H(CF
2
CF
2
)
n
CH
2
OH (n=1 to 12) is prepared by reacting excess methanol with tetrafluoroethylene in the presence of t-butyloctylperoxide.
Methanol should be recovered efficiently in the reaction, since excess methanol is used.
It is an object of the invention to provide a method for manufacturing fluoroalcohol in which methanol is recovered efficiently.


REFERENCES:
patent: 2559628 (1951-07-01), Joyce, Jr. et al.
patent: 4346250 (1982-08-01), Satokawa et al.
patent: 5023377 (1991-06-01), Desmarteau et al.
patent: 0 398 154 A1 (1990-11-01), None
patent: 0 524 638 A2 (1993-01-01), None
patent: 0 967 193 A2 (1999-12-01), None
patent: 4-8585 (1992-01-01), None
patent: 5-225619 (1993-09-01), None
patent: 5-258346 (1993-10-01), None

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