HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1631017Generated: October 31, 2026
Ethanolamine → 5-Chloro-6-(2-hydroxyethylamino)nicotinonitrile
https://huagongshe.com/reaction/1631017
Participants
| Role | Name | HCID | Charge |
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| Reactant | Ethanolamine | HCID 700 | — |
| Reactant | 5,6-Dichloropyridine-3-carbonitrile | HCID 12878464 | — |
| Solvent | tert-Butyl methyl ether | HCID 15413 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | 5-Chloro-6-(2-hydroxyethylamino)nicotinonitrile | HCID 58554205 | 89.3% |
Reaction Steps
A mixture of 5,6-dichloro-nicotinonitrile (Bionet GC-0755, 500 mg, 2.89 mmol) and ethanolamine (0.87 mL, 14.45 mmol) was prepared in anhydrous dioxane (5 mL) and heated at 80° C. for 24 hours. The reaction mixture was diluted with MTBE (50 mL) and washed with water (2×25 mL) and brine (25 ml). The aqueous layers were extracted with MTBE (50 mL). The organic layers were combined, dried (Na2SO4) and concentrated under reduced pressure to give the title compound as a white powder (510 mg, 89%). HPLC (Method A), Rt: 1.9 min (purity: 99.9%). UPLC/MS, M−(ESI): 196.0.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08791142B2 |
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| Source dataset | uspto-grants-2014_07 |
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| ORD ID | ord-b11165d2daa7499a92542ae889486fb3 |
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| Source note | uspto-grants-2014_07 |
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