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1. (WO1989000564) PROCESS FOR PRODUCING METHYLTETRAHYDROPHTHALIC ANHYDRIDE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1989/000564 International Application No.: PCT/JP1988/000685
Publication Date: 26.01.1989 International Filing Date: 07.07.1988
IPC:
C07C 51/567 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
51
Preparation of carboxylic acids or their salts, halides, or anhydrides
54
Preparation of carboxylic acid anhydrides
567
by reactions not involving the carboxylic acid anhydride group
Applicants:
NEW JAPAN CHEMICAL CO., LTD. [JP/JP]; 13, Yagura-cho Yoshijima Fushimi-ku Kyoto-shi Kyoto 612, JP (AllExceptUS)
TANI, Shoji [JP/JP]; JP (UsOnly)
NISHIO, Kenji [JP/JP]; JP (UsOnly)
IWAHASHI, Kiyoshi [JP/JP]; JP (UsOnly)
HASHIMOTO, Shigeki [JP/JP]; JP (UsOnly)
Inventors:
TANI, Shoji; JP
NISHIO, Kenji; JP
IWAHASHI, Kiyoshi; JP
HASHIMOTO, Shigeki; JP
Agent:
SAEGUSA, Eiji @; Sawanotsuru Building 10, Hiranomachi 2-chome Higashi-ku, Osaka-shi Osaka 541, JP
Priority Data:
62/17349210.07.1987JP
63/15063117.06.1988JP
Title (EN) PROCESS FOR PRODUCING METHYLTETRAHYDROPHTHALIC ANHYDRIDE
(FR) PROCEDE DE PRODUCTION D'ANHYDRIDE METHYLTETRAHYDROPHTALIQUE
Abstract:
(EN) A process for producing methyltetrahydrophthalic anhydride, which comprises subjecting maleic anhydride and a C5 fraction to Diels-Alder reaction in the presence of a radical polymerization initiator and oxygen. This process enables substantially complete inhibition of the formation of a gel-like by-product.
(FR) Procédé de production d'anhydride méthyltétrahydrophtalique, consistant à soumettre de l'anhydride maléique et une fraction C5 à une réaction de Diels-Alder en présence d'un initiateur de polymérisation de radicaux et d'oxygène. Le procédé permet l'inhibition essentiellement complète de la formation d'un produit dérivé sous forme de gel.
Designated States: DE, KR, US
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
KR1019897001575