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Title:
PROCESS FOR OXIDIZING 2,6-DIISOPROPYLNAPHTHALENE
Document Type and Number:
WIPO Patent Application WO/1987/001700
Kind Code:
A1
Abstract:
A process for producing 2,6-dihydroxynaphthalene from 2,6-diisopropylnaphthalene, which comprises oxidizing 2,6-diisopropylnaphthalene using a specific proportion of a basic compound to thereby hydroxylate or perhydroxylate 2,6-diisopropylnaphthalene with a high conversion, and decomposing the resulting intermediate with an acid in the presence of hydrogen peroxide to produce 2,6-dihydroxynaphthalene in a high yield. The yield of 2,6-dihydroxynaphthalene can be further improved by conducting purification, dehydration or addition of acetone before acid decomposition of the reaction mixture containing the intermediate. 2,6-Dihydroxynaphthalene may be recovered as 2,6-diacetoxynaphthalene by reacting with glacial acetic acid.

Inventors:
Saeki
Kenji, Fukuhara
Hiroshi, Agoo
Tokinori, Taguchi
Toru, Miki
Hisaya, Haneda
Yutaka, Yoshimoto
Sadao
Application Number:
PCT/JP1986/000215
Publication Date:
March 26, 1987
Filing Date:
April 28, 1986
Export Citation:
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Assignee:
MITSUI PETROCHEMICAL INDUSTRIES, LTD
Saeki, Kenji Fukuhara Hiroshi Agoo Tokinori Taguchi Toru Miki Hisaya Haneda Yutaka Yoshimoto Sadao
International Classes:
C07C27/12; C07C37/08; C07C39/14; C07C67/08; C07C69/16; C07C407/00; C07C409/08; (IPC1-7): C07C179/035; C07C178/00; C07C27/12; C07C37/08; C07C39/14; C07C69/16; C07C67/08
Foreign References:
JPH05123490B
JPH05248635A1993-09-24
Other References:
See also references of EP 0239643A4
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