GB1340612A - Process for the production of alpha,beta-unsaturated ketones - Google Patents
Process for the production of alpha,beta-unsaturated ketonesInfo
- Publication number
- GB1340612A GB1340612A GB349071A GB349071A GB1340612A GB 1340612 A GB1340612 A GB 1340612A GB 349071 A GB349071 A GB 349071A GB 349071 A GB349071 A GB 349071A GB 1340612 A GB1340612 A GB 1340612A
- Authority
- GB
- United Kingdom
- Prior art keywords
- unsaturated ketones
- compound
- aralkyl
- cycloalkyl
- ketone
- 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.)
- Expired
Links
Classifications
-
- 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
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/65—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by splitting-off hydrogen atoms or functional groups; by hydrogenolysis of functional groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1340612 α,#-Unsaturated ketones LEUNAWERKE WALTER ULBRICHT VEB 29 Jan 1971 3490/71 Addition to 1340611 Heading C2C α,# - Unsaturated ketones of the general formula wherein R 1 to R 4 represent identical or different groups, R 1 , R 2 and R 3 being a hydrogen atom or optionally substituted alkyl, cycloalkyl, aralkyl, aryl or heterocyclic groups, and R 4 being an optionally substituted alkyl, cycloalkyl, aralkyl, aryl or heterocyclic group, are prepared by reacting a ketone of the general formula with a compound of a platinum group metal in a bivalent or higher valency state in the presence of a peroxy compound between 30‹ and 160‹ C. Preferably between 1/100 and 1/1000 mol. of platinum group metal compound per mol. of ketone is used. The process may be carried out in a solvent, preferably t-butanol and the peroxy compound is preferably t-butylhydroperoxide but may also be hydrogen peroxide or 2-methylbutyl-2-hydro-peroxide.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD14311669 | 1969-10-16 | ||
DD14311569 | 1969-10-16 | ||
DD14601070 | 1970-03-05 | ||
DD15018470 | 1970-09-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1340612A true GB1340612A (en) | 1973-12-12 |
Family
ID=27430192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB349071A Expired GB1340612A (en) | 1969-10-16 | 1971-01-29 | Process for the production of alpha,beta-unsaturated ketones |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2050566A1 (en) |
GB (1) | GB1340612A (en) |
NL (1) | NL7018683A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993012061A1 (en) * | 1991-12-10 | 1993-06-24 | The Upjohn Company | Preparation of alpha, beta-unsaturated enones |
US7495132B2 (en) | 2004-01-30 | 2009-02-24 | Basf Aktiengesellschaft | Catalytically active composition and the use thereof in dehydration methods |
CN112479843A (en) * | 2020-12-03 | 2021-03-12 | 万华化学集团股份有限公司 | Preparation method of 5-methyl-3-cyclohexenone and application thereof in preparation of m-cresol |
-
1970
- 1970-10-15 DE DE19702050566 patent/DE2050566A1/en active Pending
- 1970-12-22 NL NL7018683A patent/NL7018683A/xx unknown
-
1971
- 1971-01-29 GB GB349071A patent/GB1340612A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993012061A1 (en) * | 1991-12-10 | 1993-06-24 | The Upjohn Company | Preparation of alpha, beta-unsaturated enones |
US5510537A (en) * | 1991-12-10 | 1996-04-23 | The Upjohn Company | Preparation of alpha, beta-unsaturated enones |
US7495132B2 (en) | 2004-01-30 | 2009-02-24 | Basf Aktiengesellschaft | Catalytically active composition and the use thereof in dehydration methods |
CN112479843A (en) * | 2020-12-03 | 2021-03-12 | 万华化学集团股份有限公司 | Preparation method of 5-methyl-3-cyclohexenone and application thereof in preparation of m-cresol |
CN112479843B (en) * | 2020-12-03 | 2022-08-05 | 万华化学集团股份有限公司 | Preparation method of 5-methyl-3-cyclohexenone and application thereof in preparation of m-cresol |
Also Published As
Publication number | Publication date |
---|---|
DE2050566A1 (en) | 1971-05-06 |
NL7018683A (en) | 1972-06-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |