PROCESS FOR PRODUCTION OF PERFLUORODIACYL FLUORIDES

WIPO Patent Application WO/2004/080940

A1

A process for producing compounds, which are useful as the raw material in the production of various fluororesins, from inexpensive and easily available starting materials in fewer steps in high yield. The process comprises producing a compound (3) by reacting a compound (1) with a compound (2), fluorinating the compound (3) in a liquid phase into a compound (4), and converting the compound (4) either into a compound (5) or into a compound (5) and a compound (6) through the dissociation of ester linkages.

JPH0711044	RECOVERY OF HYDROXY ACID FROM WASTE
JPS5459222	SYNTHESIS OF UNSATURATED AND LACTONE FROM BUTADIENE AND CARBON DIOXIDE

WANG SHU-ZHONG (JP)
OKAZOE TAKASHI (JP)
MUROTANI EISUKE (JP)
WATANABE KUNIO (JP)
SHIRAKAWA DAISUKE (JP)
OHARU KAZUYA (JP)

PCT/JP2004/001971

September 23, 2004

February 20, 2004

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ASAHI GLASS CO LTD (JP)
WANG SHU-ZHONG (JP)
OKAZOE TAKASHI (JP)
MUROTANI EISUKE (JP)
WATANABE KUNIO (JP)
SHIRAKAWA DAISUKE (JP)
OHARU KAZUYA (JP)

C07C51/09; C07C59/315; C07C59/60; C07C67/14; (IPC1-7): C07C51/09; C07C67/14; C07C59/315; C07C59/60; C07C69/708; C07C69/734

WO2002004397A1

2002-01-17

JPS6264834A

1987-03-23

MASAAKI YAMABE ET AL.: "Synthesis of perfluorinated vinyl ethers having ester group", JOURNAL OF FLUORINE CHEMISTRY, vol. 94, no. 1, 1999, pages 65 - 68, XP002947256
See also references of EP 1602639A4

Senmyo, Kenji (38 Kanda-Higashimatsushitach, Chiyoda-ku Tokyo 42, JP)

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