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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 393183Generated: October 30, 2026

Pyridine → HCID 178514143, compound

https://huagongshe.com/reaction/393183

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantBromineHCID 24408—
ReactantPotassium thiocyanateHCID 516872—
ReactantHCID 178507956HCID 178507956—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 178514143HCID 178514143—

Reaction Conditions

Temperature5 °C

Reaction Steps

6-Amino-2-[(phenylmethyl)thio]-4-(1H)-pyrimidinone (10.5 g) (prepared as described in WO 96/35678) and potassium thiocyanate (25 g) in dimethylformamide (200 mL) were heated together at 65° C. Pyridine (6.3 mL) was added and the solution cooled to 5° C. Bromine (2.2 mL) was added slowly and the reaction mixture stirred for 2 hours at 5-10° C. The reaction mixture was poured onto ice and water, stirred for 1 hour and the solid was filtered off. After washing with water and ether a pure sample was obtained after tituration with hot methanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06806273B1
Source datasetuspto-grants-2004_10
ORD IDord-462e8151525145b38a104773e90db19c
Source noteuspto-grants-2004_10