Title:
PRODUCTION OF PRIMARY AND SECONDARY FLUORINE-CONTAINING ALCOHOL
Document Type and Number:
Japanese Patent JP3253688
Kind Code:
B2
Abstract:
PURPOSE: To obtain primary and secondary fluorine-contg. alcohol at high yield by bringing a perfluoroalkylethylene compd. to react with an alkanol compd. in the presence of a free radical initiator under specified conditions.
CONSTITUTION: (A) the compd. of the formula RfCH=CH2 (Rf is a 1-20C perfluoroalkyl residue), (B) an alkanol compd. and (C) a free radical initiator are used in the molar ratio of 1:(20 to 50):(0.002 to 0.2). At first, the components B are charged, thereafter, heating is executed at the temp. lower than the temp. in the half value period for one min of the components C by 50°C to the temp. higher by 10°C (the temp. from 50 to 230°C), and while this temp. is held, the components A and the components C are simultaneously and continuously added to the components B for 1 to 10 hrs. (preferably, 2 to 8 hrs.) to obtain the objective compd. of the formula (R is H or a 1-5C alkyl residue).
Inventors:
Wolfgang Knaup
Application Number:
JP19877192A
Publication Date:
February 04, 2002
Filing Date:
July 24, 1992
Export Citation:
Assignee:
Clariant Gezershyaft Mito Besilyenktel Haftung
International Classes:
C07C29/32; C07C29/44; C07C31/38; C07C31/40; (IPC1-7): C07C31/38; C07C29/44
Domestic Patent References:
| JP2244038A |
Other References:
【文献】米国特許3532659(US,A)
Attorney, Agent or Firm:
Mitsufumi Esaki (2 others)
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