HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Ammonia → 2,6-Dimethoxymethyl-4-(4'-methylmercaptophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid diethyl ester
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Ammonia | HCID 222 | — |
| Edukt | 4-(Methylthio)benzaldehyde | HCID 76985 | — |
| Edukt | Ethyl 4-methoxy-3-oxobutanoate | HCID 12645099 | — |
| Lösungsmittel | Ethanol | HCID 702 | — |
| Produkt | 2,6-Dimethoxymethyl-4-(4'-methylmercaptophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid diethyl ester | HCID 68121248 | 50% |
Reaktionsschritte
7.6 g of 4-methylmercaptobenzaldehyde, 16 g of γ-methoxyacetoacetic acid ethyl ester and 6 ml of aqueous concentrated ammonia in 30 ml of ethanol are heated to the boil for 6-8 hours, and 2,6-dimethoxymethyl-4-(4'-methylmercaptophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid diethyl ester is obtained in the form of beige crystals of melting point 136°-138° C.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04020178 |
| Quelldatensatz | uspto-grants-1977_04 |
| ORD ID | ord-73b84b635c304d208b0b8b973465f8bb |
| Quellennotiz | uspto-grants-1977_04 |