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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1966202Generated: October 31, 2026

Water → HCID 25260863, compound

https://huagongshe.com/reaction/1966202

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthyl bromopyruvateHCID 66144—
Reactant1-(5-Bromopyridin-2-yl)thioureaHCID 23438874—
SolventDimethylformamideHCID 6228—
ProductHCID 25260863HCID 2526086378%

Reaction Conditions

Temperature70 °C

Reaction Steps

(5-Bromo-pyridine-2-yl)-thiourea (1 mmol) is dissolved in DMF (2 ml) and 3-Bromo-2-oxo-propionic acid ethyl ester (1 eq.) is added and stirred 2 h at 70° C. The suspension is diluted with DMF (2 ml). After cooling to RT the reaction solution is poured into water and the resulting precipitate is filtered, washed with water and dried 16 h in vacuo at 40° C. “A4” is obtained as colourless powder in a yield of 78%; mp. 299.8-300.8° C.; HPLC (method C): 2.01 min; LC-MS (method A): 2.002 min, 327.95 (M+H+);

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08420642B2
Source datasetuspto-grants-2013_04
ORD IDord-0892a73dd1bc414889ed1cac52d3d923
Source noteuspto-grants-2013_04