GB819826A - Preparation of new cyclopentane derivatives - Google Patents
Preparation of new cyclopentane derivativesInfo
- Publication number
- GB819826A GB819826A GB1433/57A GB143357A GB819826A GB 819826 A GB819826 A GB 819826A GB 1433/57 A GB1433/57 A GB 1433/57A GB 143357 A GB143357 A GB 143357A GB 819826 A GB819826 A GB 819826A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cyclopentadiene
- ester
- acid
- coccl3
- alcohol
- 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
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/74—Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a ring other than a six-membered aromatic ring
- C07C69/757—Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a ring other than a six-membered aromatic ring having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention comprises homopolymers of compounds of the formula <FORM:0819826/IV (a)/1> in which R is H or -COCCl3. The ester of the above formula, in which R is -COCCl3, may be polymerized by (a) storage, (b) in solution, e.g. in carbon tetrachloride in the presence of oxygen and (c) in solution in the presence of acids. The alcohol of the formula above, in which R is H, is polymerized in solution and in the presence of an acid, e.g. trichloracetic acid. Both the ester and the alcohol may be copolymerized with other unsaturated monomers such as isobutylene, styrene and a -methyl styrene. Specification 711,791 is referred to.ALSO:The invention comprises compounds of formula C10H13OR in which R is -COCCl3 or H, the former being an ester prepared by direct interaction of cyclopentadiene and trichloracetic acid and the latter being an alcohol of boiling point 93 DEG C. (2 mm. pressure) prepared by hydrolysis of the ester. The compounds have the structure <FORM:0819826/IV (b)/1> The ester, i.e. the compound in which R is -COCCl3, may be prepared by mixing cyclopentadiene with trichloracetic acid in an aprotic solvent, the initial concentration of the cyclopentadiene being not greater than 2 gram. mols. per litre and the initial concentration of the trichloracetic acid not less than 0.25 gram. mol. per litre; and interrupting the reaction when 30-60 per cent of the cyclopentadiene initially present has been consumed by the addition of a proton acceptor to the mixture. In the examples: (a) trichloracetic acid, carbon tetrachloride and cyclopentadiene are mixed in a vacuum at 25 DEG C.; after 50 minutes pyridine is added; the ester specified above is obtained; (b) trichloracetic acid, benzene and cyclopentadiene are mixed; when 60 per cent of the cyclopentadiene has been converted potassium bicarbonate is added at the above-specified ester is separated from the resulting mixture; and (c) cyclopentadiene, trichloroacetic acid and benzene are mixed; when 35 per cent of the cyclopentadiene has reacted a solution of potassium hydroxide is added; the resulting mixture containing the ester and potassium hydroxide is allowed to stand and the ester is converted to the alcohol specified above. Specification 711,791, [Group IV (a)], is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1433/57A GB819826A (en) | 1957-01-15 | 1957-01-15 | Preparation of new cyclopentane derivatives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1433/57A GB819826A (en) | 1957-01-15 | 1957-01-15 | Preparation of new cyclopentane derivatives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB819826A true GB819826A (en) | 1959-09-09 |
Family
ID=9721943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1433/57A Expired GB819826A (en) | 1957-01-15 | 1957-01-15 | Preparation of new cyclopentane derivatives |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB819826A (en) |
-
1957
- 1957-01-15 GB GB1433/57A patent/GB819826A/en not_active Expired
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