FLUORINE-CONTAINING MONOMER AND ITS SYNTHESIS

Title:

FLUORINE-CONTAINING MONOMER AND ITS SYNTHESIS

Document Type and Number:

Japanese Patent JP3632069

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To obtain a new fluorine-containing monomer from which a highly functional fluorine-containing polymer can be synthesized.
SOLUTION: This fluorine-containing monomer is represented by formula I (RF is an alkyl or aralkyl, having at least two fluorine atoms). A perfluoroalkyl, e.g. (CF2)6F is cited as the alkyl capable of being introduced into formula I as RF, and CF2Ph is preferably cited as the aralkyl. For example, 2,5-bis (α, α-difluorophenylmethyl)bicyclo[5. 2. 0]nona-1.5.7-triene is cited as the monomer of formula I. The monomer of formula I is obtained, for example, by fluoroalkylating a compound of formula II (L1 is an eliminable group; P is a protective group) to provide a compound of formula III (R1 is a fluoroalkyl having at least two fluorine atoms), converting the carbonyl carbon of the compound of formula III to an ethylenic carbon, deprotecting and dimerizing the resultant product.

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Inventors:

Yoshinori Yamamoto
Shinichi Saito

Application Number:

JP25034699A

Publication Date:

March 23, 2005

Filing Date:

September 03, 1999

Export Citation:

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Assignee:

Tohoku University

International Classes:

C07C22/02; C07C17/281; C07C21/22; C07C45/68; C07C49/227; C07F7/08; (IPC1-7): C07C22/02; C07C17/281; C07C21/22

Domestic Patent References:

JP60237033A

Foreign References:

US5225339

Other References:

Journal of Fluorine Chemistry,1993,Vol.63,Nos.1-2,P1-3
Journal of the American Chemical Society,1974,Vol.96,No.17,P5666-5668

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