GB951192A - - Google Patents
Info
- Publication number
- GB951192A GB951192A GB951192DA GB951192A GB 951192 A GB951192 A GB 951192A GB 951192D A GB951192D A GB 951192DA GB 951192 A GB951192 A GB 951192A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yields
- acid
- acetophenone
- mono
- xylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
- C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/04—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing carboxylic acids or their salts
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
- C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
- C07C45/33—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties
- C07C45/34—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds
- C07C45/36—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds in compounds containing six-membered aromatic rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/70—Oxidation reactions, e.g. epoxidation, (di)hydroxylation, dehydrogenation and analogues
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/84—Metals of the iron group
- B01J2531/845—Cobalt
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
951,192. Oxidation of aralkyl compounds. GENERAL ELECTRIC CO. March 9, 1960, No. 8313/60. Heading C2C. Aralkyl compounds are oxidized in the side chain by treatment in the liquid phase with an oxygen-containing gas at a temperature between room temperature and 160‹C. in the presence of a solvent and of a catalyst containing bromine, cobalt and a carboxylic acid, the atomic ratio of bromine to cobalt in the catalyst being from 0À1 to 1À2 and the concentration of cobalt in the solvent being at least 0À05 molar. The solvent must not contain more than 5% of water by weight, and the reaction may be effected under conditions promoting the removal of water. The preferred solvent is a carboxylic acid, a number of which are specified, and the preferred sources of bromine and cobalt are hydrogen bromide and cobaltous acetate tetrahydrate respectively, although in both cases other sources are also specified. The process is preferably effected at atmospheric pressure, but the use of lower or higher pressures is also metioned. The products are generally ketones or carboxylic acids, but if it is desired to oxidize ketonic products further to yield carboxylic acids, the oxygen-containing gas may be used in admixture with ozone. The starting materials may be (1) mono-, di- and tri-alkyl substituted benzenes, e.g. toluene, the xylenes, ethyltoluene and mesitylene, (2) mono-, di-, tri- and tetra-alkyl diphenyls or diphenylalkanes, e.g. diphenylmethanes, (3) mono-, di- and tri-alkyl substituted naphthalenes, e.g. 1-methylnaphthalene and amylnaphthalene, (4) the isomeric toluic acids, (5) alkyl-substituted acetophenones, (6) alkylsubstituted diphenyl ketones, e.g. 4, 4<SP>1</SP>-dimethyldiphenyl ketone, (7) alkyl-substituted diphenyl sulphones, (8) bromotoluene and bromotoluic acid, and (9) dialkyldiphenyl ethers. Examples are given in which (1) o-xylene yields phthalic acid, (2) ethylbenzene yields acetophenone, (3) p-xylene yields terephthalic acid, (4) a mixture of o-, m- and p-xylene and ethylbenzene yields mixed dibasic acids and acetophenone, (5) ptoluic acid yields terephthalic acid, (6) o-bromotoluene yields o-bromobenzoic acid, (7) p-xylene yields p-toluic acid, (8) mesitylene yields a mixture of mono-, di- and tri-benzene carboxylic acids, (9) 2, 5-dimethylacetophenone yields a mixture of acetophenone mono- and di-carboxylic acids, (10) p-methylacetophenone yields p-acetylbenzoic acid, (11) 4, 41-dimethyldiphenyl ketone yields 4, 4<SP>1</SP>-diphenylketone dicarboxylic acid, (12) 4, 41-dimethyldiphenyl ether yields 4, 4<SP>1</SP>- diphenyl ether dicarboxylic acid, (13) ethylbenzene yields acetophenone, (14) ethylbenzene, with the addition of ozone to the gas containing oxygen, yields benzoic acid and acetophenone, (15) propylbenzene yields propiophenone and benzoic acid, (16) p-ethylacetophenone yields p-diacetylbenzene, (17) 1-methylnaphthalene yields 1-naphthoic acid, (18) 1-amylnaphthalene yields naphthalyl -1- butyl ketone and 1-naphthoic acid, and (19) p-ethyltoluene yields pacetylbenzoic acid. Reference is made also to the production of isophthalic acid from m-xylene, benzoic acid from toluene, o- and m-diacetylbenzenes from o-, and m-diethylbenzenes and 1- acetylnaphthalene from 1-ethylnaphthalene. Mention is made also of the use of peroxides or hydroperoxides as reaction promoters.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG0029254 | 1960-03-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB951192A true GB951192A (en) |
Family
ID=7123688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB951192D Active GB951192A (en) | 1960-03-18 |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1418852A1 (en) |
GB (1) | GB951192A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102701965A (en) * | 2012-05-23 | 2012-10-03 | 扬州市天平化工厂有限公司 | Preparation method of 4-acetylbenzoic acid |
CN103288631A (en) * | 2012-02-29 | 2013-09-11 | 中国石油化工股份有限公司 | Preparation method of benzoic acid |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107586258A (en) * | 2017-10-16 | 2018-01-16 | 黄石市利福达医药化工有限公司 | A kind of composition, reaction system and method for being used to prepare 1 naphthoic acid |
-
0
- GB GB951192D patent/GB951192A/en active Active
-
1960
- 1960-03-18 DE DE19601418852 patent/DE1418852A1/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103288631A (en) * | 2012-02-29 | 2013-09-11 | 中国石油化工股份有限公司 | Preparation method of benzoic acid |
CN103288631B (en) * | 2012-02-29 | 2016-05-25 | 中国石油化工股份有限公司 | A kind of benzoic preparation method |
CN102701965A (en) * | 2012-05-23 | 2012-10-03 | 扬州市天平化工厂有限公司 | Preparation method of 4-acetylbenzoic acid |
Also Published As
Publication number | Publication date |
---|---|
DE1418852A1 (en) | 1968-10-10 |
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