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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1762147Generated: October 31, 2026

Hydrazine hydrate (1:1) → HCID 10427996, compound

https://huagongshe.com/reaction/1762147

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 10089532HCID 10089532—
SolventEthanolHCID 702—
ProductHCID 10427996HCID 1042799635.1%

Reaction Steps

A mixture of ethyl 2,5-dioxo-3-(3-nitrophenyl)-5-phenylpentanoate (1.5 g) and hydrazine monohydrate (0.24 g) in ethanol (30 ml) was refluxed for 5.5 hours. After evaporating the solvent in vacuo, the residue was subjected to a column chromatography on silica gel (100 ml) eluting with a mixture of benzene and ethyl acetate (50:1 V/V). The fractions containing the object compound were combined and concentrated under reduced pressure to give ethyl 1,4-dihydro-4-(3-nitrophenyl)-6-phenyl-3-pyridazinecarboxylate (0.52 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04831030
Source datasetuspto-grants-1989_05
ORD IDord-f7b3293c971b4a4aaa84442f8645fc2c
Source noteuspto-grants-1989_05