HuagongsheHuagongshe Chemistry Print Report · For research reference only
Phosphorus sulfide (P2S5) → HCID 21256521, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Phosphorus sulfide (P2S5) | HCID 14817 | — |
| Reactant | 2-Ethyl-2H-benzo[b][1,4]oxazin-3(4H)-one | HCID 3155599 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | HCID 21256521 | HCID 21256521 | 532.7% |
Reaction Steps
0.25 g of 2-ethyl-1,4-benzoxazin-3-one is stirred in 2 ml of pyridine with 95 mg of phosphorus pentasulfide. The reaction is completed by reflux-boiling. It is poured onto water, extracted with ethyl acetate, and the organic phase is washed with brine. It is dried with magnesium sulfate and concentrated by evaporation. After column chromatography with hexane/ethyl acetate, 220 mg of product results.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06191127B1 |
| Source dataset | uspto-grants-2001_02 |
| ORD ID | ord-97f59d314a304465accf2e88423a266d |
| Source note | uspto-grants-2001_02 |