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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 639614Generated: October 31, 2026

Nitric Acid → HCID 178526876, compound

https://huagongshe.com/reaction/639614

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantHCID 178516635HCID 178516635—
SolventEthyl acetate acetateHCID 22609514—
ProductHCID 178526876HCID 178526876514%

Reaction Conditions

Temperature30 °C

Reaction Steps

6-Cyclopropyl-2,4-dihydroxy-pyridine (1 g, 6.6 mmol) was suspended in AcOH:EtOAc (4:1, 10 mL) at room temperature. The mixture was warmed to 30° C. and a small portion of fuming nitric acid (0.05 ml, 1.2 mmol) was added dropwise, keeping the temperature between 30 and 35° C. Upon addition the mixture became a clear solution. The remainder of the fuming nitric acid (0.25 ml, 6.3 mmol) was added dropwise. The clear solution was allowed to cool to room temperature upon which a precipitate started to form. The mixture was stirred at room temperature overnight. The solid was collected by filtration, washed with cold water and Et2O and dried in vacuo at room temperature over the weekend to give the title compound (1.21 g) as a yellow powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07691877B2
Source datasetuspto-grants-2010_04
ORD IDord-699ba7392eb04e3ab88e5aceacec5a4a
Source noteuspto-grants-2010_04