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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 981165Generated: October 30, 2026

Water → HCID 10267209, compound

https://huagongshe.com/reaction/981165

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthyl AcetateHCID 8857—
ReactantSodium borohydrideHCID 4311764—
ReactantHCID 10020712HCID 10020712—
SolventEthanolHCID 702—
SolventTetrahydrofuranHCID 8028—
ProductHCID 10267209HCID 1026720921.6%

Reaction Steps

To a solution of ethyl 4-(3-nitrophenyl)-6-phenyl-3-pyridazinecarboxylate (1 g) in a mixture of ethanol (10 ml) and tetrahydrofuran (10, ml) was added sodium borohydride (0.22 g) and the mixture was stirred for 3 hours at ambient temperature. Then the reaction mixture was poured into a mixture of ethyl acetate (100 ml) and water (50 ml). The organic layer was washed with saturated aqueous sodium chloride, dried over magnesium sulfate and evaporated in vacuo. The residue was subjected to a column chromatography on silica gel (50 g) and eluted with a mixture of benzene and ethyl acetate (5:1 V/V). The fractions containing the desired compound were combined and concentrated under reduced pressure. The residue was recrystallized from a mixture of ethanol and chloroform to give 3-hydroxymethyl-4-(3-nitrophenyl)-6-phenylpyridazine (0.19 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04990507
Source datasetuspto-grants-1991_02
ORD IDord-1ed4917e2ca0431f87bf680d27320a16
Source noteuspto-grants-1991_02