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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 335127Generated: October 30, 2026

Ethanol → 5-bromo-N-(4-methylthiazol-2-yl)-3-(phenylthio)pyridin-2-amine

https://huagongshe.com/reaction/335127

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantChloroacetoneHCID 6571—
ReactantTriethylamineHCID 8471—
Reactant1-(5-Bromo-3-(phenylthio)pyridin-2-yl)thioureaHCID 86631486—
SolventWaterHCID 962—
Product5-bromo-N-(4-methylthiazol-2-yl)-3-(phenylthio)pyridin-2-amineHCID 24764613100.8%

Reaction Steps

mL 1-(5-Bromo-3-(phenylthio)pyridin-2-yl)thiourea (5.0 g, 14.69 mmol), triethylamine (6.0 mL, 44 mmol), 1-chloropropan-2-one (2.3 mL, 29.4 mmol), and EtOH (100 mL) were heated to 70° C. for 6 hours. The ethanol was reduced to ˜½ volume and water (150 mL) added and the precipitate was filtered to afford the title compound (5.6 g, 100% yield) as a tan solid after drying. 1H NMR (CDCl3) δ 9.01 (s, 1H), 8.42 (m, 1H), 7.92 (m, 1H), 7.32-7.15 (m, 5H), 6.44 (m, 1H0, 2.32 (m, 3H). Mass spectrum (apci) m/z=379.8 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08883828B2
Source datasetuspto-grants-2014_11
ORD IDord-7ef8bc97b5da4a40af7aa29265a582b0
Source noteuspto-grants-2014_11