HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sulfuric Acid → HCID 21559728, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | HCID 21559722 | HCID 21559722 | — |
| Product | HCID 21559728 | HCID 21559728 | — |
Reaction Steps
A slurry of 1 g of 7-hydroxy-4-oxo-2-methyl-4H-1-benzopyran-3-carbonitrile in 6 ml of conc. sulfuric acid was heated for 3 hours on the steam bath. The mixture was poured onto ice. The solid was filtered and recrystallized from ethanol, mp 289°-290°C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03937837 |
| Source dataset | uspto-grants-1976_02 |
| ORD ID | ord-98f2de8e30a4465e8d967bca5dc21393 |
| Source note | uspto-grants-1976_02 |