EP0041682A1
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EP
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A method of preparing poly-substituted acylbenzenes
Assignee: Aventis Pharmaceuticals Inc
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Filing: 1981-06-02
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Granted: —
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Expires: 2001-06-02
Abstract
Abstract The present invention relates to a method of preparing poly-substituted acylbenzenes. The method comprises reacting acylhalides or equivalents with poly-substituted benzene in the presence of an acylating catalyst comprising a perfluoro sulfonic acid polymer.
Inventors
- 👤 Gregory Michael Shutske
- 👤 Linda Louise Setescak
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 22:23
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/45; C07C45/46; B; B01; B01J; B01J31/00; B01J31/02; B01J31/06; B01J31/08; B01J31/10; C07C49/00; C07C49/76; C07C49/84; B01J2231/00; B01J2231/40; B01J2231/42; B01J2231/4205
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
162 words
A method of preparing a poly-substituted acylbenzene having a structural formula I where R 1 and R 2 are the same or different and represent C 1 -C 6 -alkoxy or hydroxy, R represents (a) C 1 -C6-alkyl, or (b) a mono- or polycyclic aromatic or heteroaromatic radical, which radicals may be substituted with X m or Y n where X and Y are the same or different and represent halogen, C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -alkylthio, trifluoromethyl or nitro, and m and n are the same or different integers of 1 or 2, which comprises reacting a) a compound of the formula or b) a mixture of the compounds or c) a compound of the formula where R is as defined above, with a second reactant having the formula II where R 1 and R 2 are as defined above, in the presence of an acylating agent comprising a perfluorosulfonic acid polymer.
Claim 2
Independent Claim
162 words
A method of preparing a poly-substituted acylbenzene having a structural formula I where R 1 and R 2 are the same or different and represent C 1 -C 6 -alkoxy or hydroxy, R represents (a) C 1 -C6-alkyl, or (b) a mono- or polycyclic aromatic or heteroaromatic radical, which radicals may be substituted with X m or Y n where X and Y are the same or different and represent halogen, C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -alkylthio, trifluoromethyl or nitro, and m and n are the same or different integers of 1 or 2, which comprises reacting a) a compound of the formula or b) a mixture of the compounds or c) a compound of the formula where R is as defined above, with a second reactant having the formula II where R 1 and R 2 are as defined above, in the presence of an acylating agent comprising a perfluorosulfonic acid polymer.
Claim 3
Dependent Claim
143 words
The method as defined in claim 1 wherein said perfluoro sulfonic acid polymer is (1) a homopolymer of a vinyl ether having the formula where R f represents fluorine or a perfluoroalkyl radical having from 1 to 10 carbon atoms, Y represents fluorine or the trifluoromethyl radical, n is an integer of 1 to 3 inclusive, and M represents fluorine, the hydroxyl radical, the amine radical or a radical having the formula -OMe where Me is an alkali metal or a quaternary ammonium radical or (2) a copolymer of the vinyl ether of (1) above and a monomer which may be (a) ethylene, (b) a halogenated ethylene or (c) at least one of monomer selected from ethylene and halogenated ethylenes and at least one monomer selected from perfluorinated alpha-olefins and perfluoro alkyl vinyl ethers having the formula where n' is 0 to 5.
Claim 4
Dependent Claim
40 words
The method as defined in claim 2 wherein R represents phenyl, naphthyl, α-thienyl, ß-thienyl, α-furyl, B-furyl, α-pyridyl, B-pyridyl or δ-pyridyl , which may be substituted with X m or Y n where X, Y, m and n are as defined.
Claim 5
Dependent Claim
18 words
The method as defined in claim 3, wherein R is and X, Y, m, n are as defined.
Claim 6
Dependent Claim
19 words
The method as defined in claim 2, wherein said vinyl ether is copolymerized with at least a halogenated ethylene.
Claim 7
Dependent Claim
15 words
The method as defined in claim 5, wherein said vinyl ether is copolymerized with tetrafluoroethylene.
Claim 8
Dependent Claim
23 words
The method as defined in claim 6, wherein said copolymer has a structural formula . where Z represents a number of repeating units.
Claim 9
Dependent Claim
21 words
The method as defined in claim 7, wherein said copolymer has an equivalent weight within the range of 1100 to 1800.
Claim 10
Dependent Claim
50 words
The method as defined in claim 1, wherein said catalyst is a copolymer of a vinyl ether having the formula where M represents fluorine, the hydroxyl radical, the amino radical or a radical having the formula -OMe where Me represents an alkali metal or a quaternary ammonium radical, and tetrafluoroethylene.
Claim 11
Dependent Claim
22 words
The method as defined in claim 1, wherein said catalyst is a copolymer of a vinyl ether having a formula and tetrafluoroethylene.
Claim 12
Dependent Claim
33 words
The method as defined in claim 1, wherein said catalyst is a copolymer of a vinyl ether having a formula where Me is an alkali metal or a quaternary ammonium radical and tetrafluoroethylene.
References Cited (Backward Citations)
No citation records indexed.
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