HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Anhydride → 2,2-Dimethyl-3-acetoxy-4-(1-methyl-1,6-dihydro-6-oxo-3-pyridazinyl-amino)-6-cyano-3-chromene
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | 2,2-Dimethyl-4-(1-methyl-1,6-dihydro-6-oxo-3-pyridazinyl-amino)-6-cyano-3chromanol | HCID 9949244 | — |
| Product | 2,2-Dimethyl-3-acetoxy-4-(1-methyl-1,6-dihydro-6-oxo-3-pyridazinyl-amino)-6-cyano-3-chromene | HCID 67858389 | — |
Reaction Steps
2.0 g of 2,2-dimethyl-4-(1-methyl-1,6-dihydro-6-oxo-3-pyridazinyl-amino)-6-cyano-3-chromanol are boiled in 20 ml of acetic anhydride for 2 hours. Customary working-up gives 2,2-dimethyl-3-acetoxy-4-(1-methyl-1,6-dihydro-6-oxo-3-pyridazinyl-amino)-6-cyano-3-chromene, m.p. 110°-112°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05238937 |
| Source dataset | uspto-grants-1993_08 |
| ORD ID | ord-6d48d3d7e43b409ab39e89acff9d48b3 |
| Source note | uspto-grants-1993_08 |