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1. (WO1997017311) PROCESS FOR PRODUCING FLUORENE OR ITS DERIVATIVES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/017311 International Application No.: PCT/JP1996/003232
Publication Date: 15.05.1997 International Filing Date: 05.11.1996
Chapter 2 Demand Filed: 11.03.1997
IPC:
C07C 5/32 (2006.01) ,C07C 41/18 (2006.01) ,C07C 43/21 (2006.01) ,C07C 45/36 (2006.01) ,C07C 49/675 (2006.01) ,C07C 49/755 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
5
Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
32
by dehydrogenation with formation of free hydrogen
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
41
Preparation of ethers; Preparation of compounds having groups, groups or groups
01
Preparation of ethers
18
by reactions not forming ether-oxygen bonds
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
43
Ethers; Compounds having groups, groups or groups
02
Ethers
20
having an ether-oxygen atom bound to a carbon atom of a six-membered aromatic ring
21
containing rings other than six-membered aromatic rings
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
45
Preparation of compounds having CO groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
27
by oxidation
32
with molecular oxygen
33
of CHx-moieties
34
in unsaturated compounds
36
in compounds containing six-membered aromatic rings
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
49
Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
587
Unsaturated compounds containing a keto group being part of a ring
657
containing six-membered aromatic rings
665
a keto group being part of a condensed ring system
675
having three rings
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
49
Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
587
Unsaturated compounds containing a keto group being part of a ring
753
containing ether groups, groups, groups, or groups
755
a keto group being part of a condensed ring system with two or three rings, at least one ring being a six-membered aromatic ring
Applicants:
NIPPON SHOKUBAI CO., LTD. [JP/JP]; 1-1, Koraibashi 4-chome Chuo-ku Osaka-shi Osaka 541, JP (AllExceptUS)
SAITO, Noboru [JP/JP]; JP (UsOnly)
IIDA, Toshiya [JP/JP]; JP (UsOnly)
MAEDA, Isamu [JP/JP]; JP (UsOnly)
Inventors:
SAITO, Noboru; JP
IIDA, Toshiya; JP
MAEDA, Isamu; JP
Agent:
HAGINO, Taira ; Eikoh Patent Office ARK Mori Building, 28th floor 12-32, Akasaka 1-chome Minato-ku Tokyo 107, JP
Priority Data:
7/28854507.11.1995JP
Title (EN) PROCESS FOR PRODUCING FLUORENE OR ITS DERIVATIVES
(FR) PROCESSUS DE PRODUCTION DE FLUORENE OU DE SES DERIVES
Abstract:
(EN) A process for efficiently and industrially advantageously producing fluorene or its derivatives represented by general formula (II) via the gas-phase intra-molecular dehydrocyclization of aromatic compounds represented by general formula (I) as an inexpensive material. It is expected that the fluorene or its derivatives are usable as starting materials for producing heat-resistant epoxy resins, polycarbonates and polyesters, wherein R1 and R2 represent each hydrogen, methyl or ethyl, or R1 and R2 together represent =O; and R and R' represent each hydrogen, C1-4 alkyl or C1-4 alkoxy.
(FR) Cette invention concerne un processus avantageux et efficace permettant de produire en grandes quantités du fluorène, ou ses dérivés, correspondant à la formule générale (II). Ce processus fait appel à la déhydrocyclisation intramoléculaire en phase gazeuse d'un matériau peu coûteux consistant en des composés aromatiques qui correspondent à la formule générale (I). Dans ces deux formules, R1 et R2 représentent chacun hydrogène, méthyle ou éthyle, ou encore, R1 et R2 représentent ensemble =O, tandis que R et R' représentent chacun hydrogène, alkyle C1-4 ou alcoxy C1-4. Le fluorène ou ses dérivés ainsi obtenus peuvent être utilisés en qualité de matières de départ dans la production de résines époxy, de polycarbonates et de polyesters résistant à la chaleur.
Designated States: JP, US
European Patent Office (DE, FR, GB, IT, NL)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
EP0911309US6037501JP3859719