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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1006484Generated: October 30, 2026

Pyridine → HCID 178514143, compound

https://huagongshe.com/reaction/1006484

Reaction equation

Participants

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

Reaction Conditions

Temperature5 °C

Reaction Steps

6-Amino-2-[(phenylmethyl)thio]-4(1H)-pyrimidinone (10.5 g) [preparation as described in WO 9635678] and potassium thiocyanate (25 g) in N,N-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 water, stirred for 1 hour and the solid was isolated by filtration. After washing with water and ether, a pure sample was obtained after trituration with hot methanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06790850B1
Source datasetuspto-grants-2004_09
ORD IDord-6ced88f69ee04955a39cd9da6ac9f92c
Source noteuspto-grants-2004_09