HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Dimethyl acetylenedicarboxylate → 1-(3-Methoxy-4-ethoxyphenyl)-2,3-bis(methoxycarbonyl)-4-hydroxy-6,7,8-trimethoxynaphthalene
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Dimethyl acetylenedicarboxylate | HCID 12980 | — |
| Edukt | 4-Ethoxy-3-methoxybenzaldehyde | HCID 67116 | — |
| Edukt | 2-Bromo-3,4,5-trimethoxybenzaldehyde dimethylacetal | HCID 15914458 | — |
| Produkt | 1-(3-Methoxy-4-ethoxyphenyl)-2,3-bis(methoxycarbonyl)-4-hydroxy-6,7,8-trimethoxynaphthalene | HCID 13910827 | 67% |
Reaktionsschritte
2-Bromo-3,4,5-trimethoxybenzaldehyde dimethyl-acetal, 3-methoxy-4-ethoxybenzaldehyde and dimethyl acetylenedicarboxylate are treated in the same manner as described in Example , whereby 1-(3-methoxy-4-ethoxyphenyl)-2,3-bis(methoxycarbonyl)-4-hydroxy-6,7,8-trimethoxynaphthalene is obtained as colorless needles.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04897418 |
| Quelldatensatz | uspto-grants-1990_01 |
| ORD ID | ord-3da3f408530545cf81c1f1cd45241b9d |
| Quellennotiz | uspto-grants-1990_01 |