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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1728599Generated: October 30, 2026

HCID 67842554, compound → HCID 19016526, compound

https://huagongshe.com/reaction/1728599

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 67842554HCID 67842554—
SolventHydrochloric AcidHCID 313—
ProductHCID 19016526HCID 1901652689.7%

Reaction Steps

The 4-nitrophenylhydrazone of ethyl 2-oxopentanoate (D29) (0.72 g, 2.60 mM) was heated to reflux for 16 h in concentrated hydrochloric acid. After cooling to room temperature the precipitated solid was filtered off. Chromatography on silica using dichloromethane as eluant gave the title compound as a yellow solid (0.22 g; 45%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05328922
Source datasetuspto-grants-1994_07
ORD IDord-15b103780a3c45b68d45661a388de054
Source noteuspto-grants-1994_07