HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Veratraldehyde → 1-(3,4-Dimethoxyphenyl)-2,3-bis(ethoxycarbonyl)-4-hydroxy-6,7,8-trimethoxynaphthalene
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Veratraldehyde | HCID 8419 | — |
| Edukt | Diethyl acetylenedicarboxylate | HCID 69803 | — |
| Edukt | 2-Bromo-3,4,5-trimethoxybenzaldehyde dimethylacetal | HCID 15914458 | — |
| Produkt | 1-(3,4-Dimethoxyphenyl)-2,3-bis(ethoxycarbonyl)-4-hydroxy-6,7,8-trimethoxynaphthalene | HCID 10577734 | — |
Reaktionsschritte
2-Bromo-3,4,5-trimethoxybenzaldehyde dimethylacetal, 3,4-dimethoxybenzaldehyde and diethyl acetylenedicarboxylate are treated in the same manner as described in Example 1-(1) & (2), whereby 1-(3,4-dimethoxyphenyl)-2,3-bis(ethoxycarbonyl)-4-hydroxy-6,7,8-trimethoxynaphthalene is obtained as colorless crystals.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04897418 |
| Quelldatensatz | uspto-grants-1990_01 |
| ORD ID | ord-3f85bc4ebeea4fef83e5445c6887a440 |
| Quellennotiz | uspto-grants-1990_01 |