HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 13091157, compound → HCID 13091162, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | HCID 13091157 | HCID 13091157 | — |
| Solvent | Hydrochloric Acid | HCID 313 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 13091162 | HCID 13091162 | — |
Reaction Steps
A solution of ethyl 5-(4-chlorophenylthio)-4-oxo-4H-pyran-2-carboxylate (5.0 g) in dioxan (40 ml) and concentrated hydrochloric acid (20 ml) was heated under reflux for 2 hours then evaporated under vacuum. The solid residue was dried and recrystallised from ethyl acetate-petroleum spirit (60°-80° C.) to give the title product (mp 165°-167° C. with decomposition).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04364956 |
| Source dataset | uspto-grants-1982_12 |
| ORD ID | ord-dd83a92d96ce453ab41209a392670eae |
| Source note | uspto-grants-1982_12 |