HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 73374Generated: October 30, 2026
Ethanol → 2-Amino-4-(3-cyanoindol-1-yl)benzoic acid
https://huagongshe.com/reaction/73374
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Water | HCID 962 | — |
| Reactant | Ammonium Chloride | HCID 25517 | — |
| Reactant | HCID 58437261 | HCID 58437261 | — |
| Catalyst | Zinc | HCID 23994 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | 2-Amino-4-(3-cyanoindol-1-yl)benzoic acid | HCID 58437231 | 27.7% |
Reaction Steps
To a solution of 4-(3-cyanoindol-1-yl)-2-nitrobenzoic acid (0.012 g) in a mixed solvent of ethanol (1 mL), water (0.5 mL) and tetrahydrofuran (0.5 mL) were added zinc powder (0.041 g) and ammonium chloride (0.004 g) at room temperature, and this mixture was stirred at 80° C. for 2.5 hours. After cooling to ambient temperature, to this reaction mixture was added ethyl acetate. This insoluble material was removed by filtration and this filtrate was washed with brine, dried over anhydrous magnesium sulfate. The solvent was removed under reduced pressure to give the title compound (0.003 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08829040B2 |
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| Source dataset | uspto-grants-2014_09 |
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| ORD ID | ord-6f4c3fb3b01041e5ac04038cf1fdb27f |
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| Source note | uspto-grants-2014_09 |
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