HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1473972Generated: October 27, 2026
Hydrochloric Acid → 2-Hydroxy-4-(thiazol-2-ylamino)benzonitrile
https://huagongshe.com/reaction/1473972
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 2-Bromothiazole | HCID 76430 | — |
| Reactant | 4-Amino-2-hydroxybenzonitrile | HCID 12468682 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 2-Hydroxy-4-(thiazol-2-ylamino)benzonitrile | HCID 86096009 | 26% |
Reaction Steps
Following the general procedure for the synthesis of 2-R-5-(thiazol-2-ylamino)phenol, 2-bromothiazole (0.94 mL, 10.4 mmol), 4-amino-2-hydroxybenzonitrile (696 mg, 5.2 mmol) and 37% HCl solution (0.88 mL, 10.4 mmol) in 10% aqueous EtOH solution (20 mL) was stirred at 90° C. for 24 h. The title compound was obtained after purification by flash chromatography on silica gel (hexane:EtOAc 1/1) in 26% yield (293 mg).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09018209B2 |
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| Source dataset | uspto-grants-2015_04 |
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| ORD ID | ord-4ca5e91211b64ea198f44c5d7bbfaee2 |
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| Source note | uspto-grants-2015_04 |
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