| (19) |
 |
|
(11) |
EP 0 376 858 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
28.11.1990 Bulletin 1990/48 |
| (43) |
Date of publication A2: |
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04.07.1990 Bulletin 1990/27 |
| (22) |
Date of filing: 21.11.1989 |
|
| (51) |
International Patent Classification (IPC)5: C25B 3/06 |
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE ES FR GB GR IT LI LU NL SE |
| (30) |
Priority: |
25.11.1988 US 275847
|
| (71) |
Applicant: EASTMAN CHEMICAL COMPANY |
|
Kingsport, TN 37660 (US) |
|
| (72) |
Inventors: |
|
- Cushman, Michael Roy
c/o EASTMAN KODAK COMPANY
Rochester
New York 14650 (US)
- Lentz, Carl Michael
c/o EASTMAN KODAK COMPANY
Rochester
New York 14650 (US)
|
| (74) |
Representative: Behrens, Dieter, Dr.-Ing. et al |
|
Wuesthoff & Wuesthoff
Patent- und Rechtsanwälte
Schweigerstrasse 2
81541 München
81541 München (DE) |
|
| |
|
| (54) |
Process for the electrochemical iodination of aromatic compounds |
(57) The present invention discloses a process for the anodic electrochemical iodination
of aromatic compounds to selectively and efficiently form a para-substituted iodobenzene.
This process makes use of a graphitic carbon anode. Also disclosed is a process for
cathodically deiodinating a diiodobenzene compound to form iodobenzene in the presence
of a palladium on carbon catalyst.