HuagongsheHuagongshe Chemistry Print Report · For research reference only
Triethylamine → 7,8-Dimethoxy-6-nitro-3-o-tolyl-chromen-2-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | o-Tolylacetic acid | HCID 69519 | — |
| Reactant | Phenylphosphonic dichloride | HCID 69990 | — |
| Reactant | 3,4-Dimethoxy-2-hydroxy-5-nitrobenzaldehyde | HCID 22313432 | — |
| Solvent | 1,2-Dichloroethane | HCID 11 | — |
| Product | 7,8-Dimethoxy-6-nitro-3-o-tolyl-chromen-2-one | HCID 22313454 | — |
Reaction Steps
A mixture of 2-methylphenyl acetic acid (0.60 g), 2-hydroxy-3,4dimethoxy-5-nitro-benzaldehyde (0.91 g), PhPOCl2 (0.60 ml) and triethyl amine (1.7 ml) were reacted in 1,2-dichloroethane as described in example 4. Yield: 0.68 g.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06951870B2 |
| Source dataset | uspto-grants-2005_10 |
| ORD ID | ord-1fcac6a199b649fd8db3925d40172766 |
| Source note | uspto-grants-2005_10 |