HuagongsheHuagongshe Chemistry Print Report · For research reference only
Pyridine → HCID 70352522, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Pyridine | HCID 1049 | — |
| Reactant | Phosphorus sulfide (P2S5) | HCID 14817 | — |
| Reactant | HCID 11469493 | HCID 11469493 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 70352522 | HCID 70352522 | — |
Reaction Steps
(acb) 1.0 g of 3,4-dihydro-thieno[2,3-f][1,4]thiazepin-5(2H)-one was heated under reflux for 5 hours together with 15 ml of pyridine and 1.35 g of phosphorus pentasulfide. After cooling the mixture was poured into 90 ml of water and the crystals were removed by filtration. After chromatography on silica gel, the product was recrystallized from ethyl acetate. There was obtained 3,4-dihydro-thieno-[2,3-f][1,4]thiazepine-5(2H-thione as yellow crystals of m.p. 138°-139°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04889848 |
| Source dataset | uspto-grants-1989_12 |
| ORD ID | ord-a81221e2625843d68877f59f630cb51c |
| Source note | uspto-grants-1989_12 |