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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 616937Generated: November 1, 2026

Formic Acid → HCID 135737574, compound

https://huagongshe.com/reaction/616937

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormic AcidHCID 284—
ReactantPirquinozolHCID 135449340—
ProductHCID 135737574HCID 13573757475%

Reaction Steps

2-(Hydroxymethyl)pyrazolo[1,5-C]quinazolin-5(6H)-one (3.3 g, 0.0153 mole) is suspended in 250 ml of 97-100% formic acid and refluxed overnight under nitrogen. The solution is stripped to dryness and the solid is recrystallized from dioxane to give 2.8 g (75% yield) of analytically pure title compound, m.p. 190°-192°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04076818
Source datasetuspto-grants-1978_02
ORD IDord-ca9a6b4c839146338da3f2a17e467a75
Source noteuspto-grants-1978_02