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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1350754Generated: October 26, 2026

Ethyl 3-oxovalerate → 1-Cyclohexyl-5-ethyl-1H-pyrazole-4-carbaldehyde

https://huagongshe.com/reaction/1350754

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 3-oxovalerateHCID 78656—
ReactantCyclohexylhydrazineHCID 80993—
Reactant5-cyclopropyl-1-(propan-2-yl)-1H-pyrazole-4-carbaldehydeHCID 19620135—
Product1-Cyclohexyl-5-ethyl-1H-pyrazole-4-carbaldehydeHCID 21097238—

Reaction Steps

1-Cyclohexyl-5-ethyl-1H-pyrazole-4-carbaldehyde was prepared from ethyl 3-oxo-pentanoate and cyclohexyl hydrazine (TCI) in the same manner as 5-cyclopropyl-1-isopropyl-1H-pyrazole-4-carbaldehyde (Example 49).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07214802B2
Source datasetuspto-grants-2007_05
ORD IDord-2d0201a125424f868f13abbb7cbf74b7
Source noteuspto-grants-2007_05