HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Ethyl cyanoacetate → Ethyl 1-cyano-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylate
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Ethyl cyanoacetate | HCID 7764 | — |
| Edukt | Calcium Carbonate | HCID 10112 | — |
| Edukt | 1,1-Dichloro-3,4-dibromo-4-methylpent-1-ene | HCID 20574281 | — |
| Katalysator | Copper | HCID 23978 | — |
| Katalysator | Calcium Chloride | HCID 5284359 | — |
| Lösungsmittel | Ethanol | HCID 702 | — |
| Produkt | Ethyl 1-cyano-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylate | HCID 12898169 | — |
Reaktionsschritte
A mixture of ethylcyanoacetate, 1,1-dichloro-3,4-dibromo-4-methylpent-1-ene and calcium carbonate is heated in ethanol (100 parts by volume) at reflux in the presence of calcium chloride (22.2 parts) and copper salt as catalyst. The crude ethyl 1-cyano-3-(2',2'-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylate is isolated as described in Example 77. Details are given in the following table:
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04284582 |
| Quelldatensatz | uspto-grants-1981_08 |
| ORD ID | ord-b83bdd34c25d451badfaded055888d16 |
| Quellennotiz | uspto-grants-1981_08 |