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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 37144Generated: October 29, 2026

Water → HCID 178488735, compound

https://huagongshe.com/reaction/37144

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantNitrobenzeneHCID 7416—
ReactantBromineHCID 24408—
ReactantHCID 178488734HCID 178488734—
SolventDiethyl EtherHCID 3283—
ProductHCID 178488735HCID 178488735—

Reaction Steps

To a 2-ml nitrobenzene suspension of 420 mg of 7-hydroxy-6-(4-methoxyphenyl)-3-(4-phenylthiophenyl)pyrazolo[1,5-a]pyrimidine, 0.1 ml of bromine was added and stirred for 1 hour at room temperature, and water and ether were added, and the precipitate was filtered. It was washed with water, methanol, ethyl acetate and ether, dried, and the title compound was obtained (270 mg, 54%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05420128
Source datasetuspto-grants-1995_05
ORD IDord-77d059eca5614bcd81529d2aff039c50
Source noteuspto-grants-1995_05