HuagongsheHuagongshe Chemistry Print Report · For research reference only
Veratraldehyde → 1-(3,4-Dimethoxyphenyl)-2,3-bis(ethoxycarbonyl)-4-hydroxy-6,7,8-trimethoxynaphthalene
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Veratraldehyde | HCID 8419 | — |
| Reactant | Diethyl acetylenedicarboxylate | HCID 69803 | — |
| Reactant | 2-Bromo-3,4,5-trimethoxybenzaldehyde dimethylacetal | HCID 15914458 | — |
| Product | 1-(3,4-Dimethoxyphenyl)-2,3-bis(ethoxycarbonyl)-4-hydroxy-6,7,8-trimethoxynaphthalene | HCID 10577734 | — |
Reaction Steps
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) and (2), whereby 1-(3,4-dimethoxyphenyl)-2,3-bis(ethoxycarbonyl)-4-hydroxy-6,7,8-trimethoxynaphthalene is obtained as colorless crystals.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05070103 |
| Source dataset | uspto-grants-1991_12 |
| ORD ID | ord-c3dae89c42774ed695534cdc2052e53c |
| Source note | uspto-grants-1991_12 |