HuagongsheHuagongshe Chemistry Print Report · For research reference only
3-Pyridinesulfonamide,2-amino-(9CI) → 2H-Pyrido(2,3-e)-1,2,4-thiadiazine, 1,1-dioxide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 3-Pyridinesulfonamide,2-amino-(9CI) | HCID 1713868 | — |
| Reactant | Ethylorthoformate | HCID 53630039 | — |
| Product | 2H-Pyrido(2,3-e)-1,2,4-thiadiazine, 1,1-dioxide | HCID 3054012 | — |
Reaction Steps
A mixture of 2 g of 2-aminopyridine-3-sulfonamide (Preparation 6) and 20 cm3 of ethyl orthoformate is brought to reflux for 1 hour. After cooling, the crystalline precipitate obtained is collected on a filter and washed with ether.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05459138 |
| Source dataset | uspto-grants-1995_10 |
| ORD ID | ord-df4f45697ba344a8a960a60e28988795 |
| Source note | uspto-grants-1995_10 |