HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 915741Generated: October 25, 2026
2-Amino-5-chlorobenzenesulphonamide → 7-Chloro-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide
https://huagongshe.com/reaction/915741
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 2-Amino-5-chlorobenzenesulphonamide | HCID 12295550 | — |
| Reactant | Ethylorthoformate | HCID 53630039 | — |
| Product | 7-Chloro-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide | HCID 10036276 | — |
Reaction Steps
40 ml of ethyl orthoformate are added to 4.75 g of 2-amino-5-chlorobenzenesulphonamide, the preparation of which is described in the journal J. Chem. Soc. Perkin I 1979, 1043-1047. The mixture is heated at 110° C. for 30 minutes in an open vessel. Dissolution is observed, and then the appearance of a precipitate.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07268129B2 |
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| Source dataset | uspto-grants-2007_09 |
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| ORD ID | ord-8c5508e013dd46e7967bc5c34389410b |
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| Source note | uspto-grants-2007_09 |
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