GB877632A - Improvements in and relating to epoxidation - Google Patents
Improvements in and relating to epoxidationInfo
- Publication number
- GB877632A GB877632A GB41620/59A GB4162059A GB877632A GB 877632 A GB877632 A GB 877632A GB 41620/59 A GB41620/59 A GB 41620/59A GB 4162059 A GB4162059 A GB 4162059A GB 877632 A GB877632 A GB 877632A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- unsaturated compounds
- olefines
- unsaturation
- aliphatic
- 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
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/02—Synthesis of the oxirane ring
- C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
- C07D301/12—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with hydrogen peroxide or inorganic peroxides or peracids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/02—Synthesis of the oxirane ring
- C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
- C07D301/14—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with organic peracids, or salts, anhydrides or esters thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/04—Compounds containing oxirane rings containing only hydrogen and carbon atoms in addition to the ring oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/48—Compounds containing oxirane rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms, e.g. ester or nitrile radicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Epoxy Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Ethylenically unsaturated compounds are epoxidized by reacting with a preformed percarboxylic acid having not more than 10 carbon atoms in the molecule in the presence of sufficient acid acceptor to neutralise 15% to 80% of the acid present in the reaction mixture. The reaction is effected at -10 DEG C. to +80 DEG C. for 1/2 to 8 hours and the peracid is employed in an amount sufficient to epoxidize all desired unsaturation. Preferred starting materials are the 4 to 6 carbon aliphatic and cyclo-aliphatic olefines such as pentene and cyclohexene. Olefines which carry alkyl and aromatic hydrocarbon-substituents on carbons alpha to the unsaturation are exemplified by a -methyl styrene, limonene, a -pinene, myrcene, allooccimene, diisobutylene, camphene, polybutadiene, copolymers of butadiene with other unsaturated compounds, tripropylene and tetrapropylene. The unsaturated compounds may also carry hydroxy, carboxyl, sulphonic acid, halogen or aldehyde groups. Thus the process may be used to form epoxides of fatty acid esters. Typical acid acceptors are the alkali and alkaline earth metal hydroxides, carbonates, bicarbonates, acetates, propionates, butyrates, valerates, caproates, caprylates, pelargonates, phosphates, silicates and borates. The preferred percarboxylic acids are performic, peracetic, percyclohexanoic, perpelargonic.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US877632XA | 1958-12-09 | 1958-12-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB877632A true GB877632A (en) | 1961-09-20 |
Family
ID=22207099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB41620/59A Expired GB877632A (en) | 1958-12-09 | 1959-12-08 | Improvements in and relating to epoxidation |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB877632A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3235568A (en) * | 1961-03-20 | 1966-02-15 | Swift & Co | Epoxy polyamides |
US3979425A (en) | 1967-06-15 | 1976-09-07 | Firmenich S.A. | Process for the preparation of unsaturated aldehydes |
US4882442A (en) * | 1980-12-30 | 1989-11-21 | Peroxid-Chemie Gmbh | Process for the production of epoxides |
-
1959
- 1959-12-08 GB GB41620/59A patent/GB877632A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3235568A (en) * | 1961-03-20 | 1966-02-15 | Swift & Co | Epoxy polyamides |
US3979425A (en) | 1967-06-15 | 1976-09-07 | Firmenich S.A. | Process for the preparation of unsaturated aldehydes |
US4882442A (en) * | 1980-12-30 | 1989-11-21 | Peroxid-Chemie Gmbh | Process for the production of epoxides |
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