Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|
| Edukt | Azobisisobutyronitrile | HCID 6547 | — |
| Edukt | Chrysanthemic acid, cis-(-)- | HCID 20755 | — |
| Edukt | Bromine | HCID 24408 | — |
| Lösungsmittel | Toluene | HCID 1140 | — |
| Lösungsmittel | Carbon Tetrachloride | HCID 5943 | — |
| Produkt | Chrysanthemic Acid | HCID 2743 | 95,5% |
Reaktionsschritte
2.0 g of cis-chrysanthemic acid and 23 mg of azobisisobutyronitrile were dissolved in 20 ml of toluene and thereto was added dropwise a solution of bromine (21 mg) in carbon tetrachloride with stirring at 80° C. over a period of 20 minutes. Thereafter, a treatment similar to Example 1 was carried out to obtain 1.91 g of chrysanthemic acid. Gas chromatographic assay thereof showed the composition: cis, 9.8% and trans, 90.2%.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patentnummer | US04820864 |
|---|
| Quelldatensatz | uspto-grants-1989_04 |
|---|
| ORD ID | ord-37eecdbf47564be0a4584111c6340093 |
|---|
| Quellennotiz | uspto-grants-1989_04 |
|---|
