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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1289533Generated: October 30, 2026

HCID 178518333, compound → HCID 178518397, compound

https://huagongshe.com/reaction/1289533

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 178518333HCID 178518333—
CatalystAdams' catalystHCID 345198—
SolventTrifluoroacetic acidHCID 6422—
ProductHCID 178518397HCID 17851839734.5%

Reaction Steps

A mixture solution of 2,4-dihydroxyquinazoline(39.2 g, 0.24 mol), platinium oxide(4 g) and trifluoroacetic acid(300 ml) was hydrogenated by Parr reactor for 2 hours. Platinium was filtered and the filtrate was concentrated, diluted with water, and basified with 1N-NaOH solution. The resulting solid was filtered and dried to give 13.76 g of the titled compound. (Yield: 34.5%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05750531
Source datasetuspto-grants-1998_05
ORD IDord-6e0409b4965f422ba5086c69b30bbe3e
Source noteuspto-grants-1998_05