GB940140A - Improvements in or relating to a process for the preparation of ª -cyclopropane acrylic acids or derivatives thereof - Google Patents
Improvements in or relating to a process for the preparation of ª -cyclopropane acrylic acids or derivatives thereofInfo
- Publication number
- GB940140A GB940140A GB324761A GB324761A GB940140A GB 940140 A GB940140 A GB 940140A GB 324761 A GB324761 A GB 324761A GB 324761 A GB324761 A GB 324761A GB 940140 A GB940140 A GB 940140A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methyl
- acrylic acid
- cyclopropyl
- ester
- acrylic
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/06—Unsaturated carboxylic acids or thio analogues thereof; Derivatives thereof
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention comprises substituted or unsubstituted b -cyclopropane acrylic acids or derivatives thereof of general formula <FORM:0940140/C2/1> where R1 and R2, which may be the same or different, are H, -COOR, (R is H or an alkyl group), -CN, or -COR; R3 is H or an alkyl group; and R4 is a -CN or -COOR group, and their preparation by reacting a 4,5-dihalogen hexenoic-2-acid, or a functional derivative with an acidic compound of formula <FORM:0940140/C2/2> wherein R1 and R2 impart acidic properties and may be -COOR, -COR, or -CN (where R is an alkyl group) e.g. malonic acid ester. The reactions are preferably carried out in an organic anhydrous solvent e.g. alcohol, benzene, tetrahydrofuran and chloroform, and the basic condensation agent may be sodium ethylate or silver oxide. Tricarboxylic acids which may be obtained, may be further saponified and decarboxylated to the dicarboxylic acids. Examples describe the preparation of b -(2,2,-dicarbethoxy-3-methyl cyclopropyl)-a -methyl acrylic acid ethyl ester, acrylic acid methyl ester, ethyl acrylate and acrylonitrile; b -(2, 2-dicarboxy-3-methyl-cyclopropyl) a -methyl acrylic and/or acrylic acids; b -(2-carboxy-3-methyl cyclopropyl) a -methyl acrylic acid; b -(2-carboxy-2-carbethoxy-3-methyl cyclopropyl) acrylic acid; b -(2,2-diacetyl-3-methyl-cyclopropyl) acrylic acid methyl ester; b -(2-acetyl-2-carbethoxy-3-methyl cyclopropyl) acrylic acid ethyl ester; and b -(2,2-dinitrile-3-methyl cyclopropyl) acrylic acid methyl ester.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES66871A DE1108214B (en) | 1960-01-30 | 1960-01-30 | Process for the preparation of optionally substituted ª ‰ -Cyclopropylacrylsaeuren or their functional derivatives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB940140A true GB940140A (en) | 1963-10-23 |
Family
ID=7499130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB324761A Expired GB940140A (en) | 1960-01-30 | 1961-01-27 | Improvements in or relating to a process for the preparation of ª -cyclopropane acrylic acids or derivatives thereof |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1108214B (en) |
| GB (1) | GB940140A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0473110A1 (en) * | 1990-08-27 | 1992-03-04 | E.R. SQUIBB & SONS, INC. | Method for preparing isoprenoid cyclopropane 1,1-dicarboxylates and derivatives thereof and novel intermediates |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1278435B (en) * | 1965-01-19 | 1968-09-26 | Merck Ag E | Process for the preparation of 1,2-disubstituted cyclopropane derivatives |
| US4328169A (en) * | 1980-10-27 | 1982-05-04 | Emery Industries, Inc. | Process for the preparation of vinylcyclopropane derivatives |
-
1960
- 1960-01-30 DE DES66871A patent/DE1108214B/en active Pending
-
1961
- 1961-01-27 GB GB324761A patent/GB940140A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0473110A1 (en) * | 1990-08-27 | 1992-03-04 | E.R. SQUIBB & SONS, INC. | Method for preparing isoprenoid cyclopropane 1,1-dicarboxylates and derivatives thereof and novel intermediates |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1108214B (en) | 1961-06-08 |
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