HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 904842Generated: October 26, 2026
Formic Acid → 5-Chloro-1H-benzimidazole-6-sulfonamide
https://huagongshe.com/reaction/904842
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Formic Acid | HCID 284 | — |
| Reactant | 4,5-Diamino-2-chlorobenzene-1-sulfonamide | HCID 13289688 | — |
| Product | 5-Chloro-1H-benzimidazole-6-sulfonamide | HCID 178514679 | — |
Reaction Steps
In a round bottomed flask equipped with a condenser 24.0 g of 2-amino-4-chloro-5-sulfamyl-aniline and 7.0 g of formic acid is refluxed at 100° C. for two hours. Concentrate under vacuum. Dissolve in hot methanol, stir, cool and filter off the solid wt.=11.0 gm. m.p. 243.8° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04420487 |
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| Source dataset | uspto-grants-1983_12 |
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| ORD ID | ord-f761db9ba8894d10adeeb1e9b42b1252 |
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| Source note | uspto-grants-1983_12 |
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