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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1183302Generated: November 1, 2026

Hydrazine hydrate (1:1) → HCID 66577662, compound

https://huagongshe.com/reaction/1183302

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
Reactant5-(4-Bromophenyl)-3-methyl-1,2-oxazole-4-carboxylic acidHCID 56604559—
SolventTetrahydrofuranHCID 8028—
ProductHCID 66577662HCID 66577662—

Reaction Conditions

Temperature70 °C

Reaction Steps

5-(4-Bromo-phenyl)-3-methyl-isoxazole-4-carboxylic acid (0.061 g, 2.16 mmol) was dissolved in THF (5 mL) then 1,1′-carbonyldiimidazole (0.390 g, 2.38 mmol) was added and the reaction was heated to 70° C. for 40 minutes. The reaction was then cooled to 0° C. and hydrazine monohydrate (0.220 mL, 4.32 mmol) was added. The reaction was then allowed to slowly warm to room temperature and stirred overnight. Standard aqueous workup afforded the title compound, which was brought to the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08664220B2
Source datasetuspto-grants-2014_03
ORD IDord-3023208586b34048b944b0d511461664
Source noteuspto-grants-2014_03