Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1904267Generated: November 2, 2026

4-nitro-1H-pyrazole → HCID 20038758, compound

https://huagongshe.com/reaction/1904267

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-nitro-1H-pyrazoleHCID 16376—
ReactantEthyl 2-oxocyclopentanecarboxylateHCID 69136—
ProductHCID 20038758HCID 20038758—

Reaction Steps

The title compound was prepared from 4-nitropyrazole (5.2 g, 0.046 mole) as in description 7, using ethyl 2-cyclopentanonecarboxylate instead of ethyl 2-cyclohexanonecarboxylate. The product was obtained as a white solid (9.6 g, 94%) m.p. 121°-123° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04837238
Source datasetuspto-grants-1989_06
ORD IDord-7e63002eae5d4f4691e2fa761b7a3fc0
Source noteuspto-grants-1989_06