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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

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantThionicotinamideHCID 737155—
ReactantEthyl 2-bromo-3-(3-cyanophenyl)-3-oxopropionateHCID 22282470—
SolventTetrahydrofuranHCID 8028—
Product2-(3-Pyridyl)-4-(3-cyanophenyl)-5-carboethoxythiazoleHCID 2228249223%

Reaction Conditions

Temperature65 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06962935B2
Source datasetuspto-grants-2005_11
ORD IDord-0749c6ecbf2a4083aea68fb0a614a07c
Source noteuspto-grants-2005_11