HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1062672Generated: October 26, 2026
Ethyl Acetate → 2-(3-Pyridyl)-4-(3-cyanophenyl)-5-carboethoxythiazole
https://huagongshe.com/reaction/1062672
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | Thionicotinamide | HCID 737155 | — |
| Reactant | Ethyl 2-bromo-3-(3-cyanophenyl)-3-oxopropionate | HCID 22282470 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 2-(3-Pyridyl)-4-(3-cyanophenyl)-5-carboethoxythiazole | HCID 22282492 | 23% |
Reaction Steps
To a solution of ethyl 2-bromo-3-(3-cyanophenyl)-3-oxopropionate (1.0 g, 3.4 mmol) in 20 mL of tetrahydrofuran was added thionicotinamide (0.46 g, 3.4 mmol). The resulting mixture was stirred at 65° C. for 16 h. The reaction was allowed to cool and the solvent was evaporated in vacuo. The residue was triturated with chloroform, taken up in ethyl acetate, washed with saturated aq Na2CO3 and brine, dried (MgSO4) and concentrated in vacuo to yield a solid. Trituration with ethyl acetate left the title compound as an off-white solid (0.26 g, 23%). MS (ESI) 336.1 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06962935B2 |
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| Source dataset | uspto-grants-2005_11 |
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| ORD ID | ord-0749c6ecbf2a4083aea68fb0a614a07c |
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| Source note | uspto-grants-2005_11 |
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