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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 347577Generated: October 30, 2026

Acetic Acid → HCID 21081678, compound

https://huagongshe.com/reaction/347577

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantPhosphorus oxychlorideHCID 24813—
ReactantHCID 178429575HCID 178429575—
ProductHCID 21081678HCID 21081678—

Reaction Conditions

Temperature80 °C

Reaction Steps

To a suspension of 4-hydroxy-5-methylpyrrolo[2,1-f][1,2,4]triazine-6-carbohydrazide (100 mg, 0.48 mmol) in POCl3 (5 mL) was added AcOH (50 mg, 0.83 mmol). The reaction mixture was heated at 80° C. for 3 d, cooled to rt, and concentrated in vacuo. The resulting residue was dissolved in EtOAc and treated with sat. aq. NaHCO3 solution, brine, and dried over MgSO4. Filtration, followed by concentration, provide the title compound, which was used directly in next step. MS (ESI) m/z 250.1/252.1 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07173031B2
Source datasetuspto-grants-2007_02
ORD IDord-bdb5d10653a54d159cdc58cb7ad7bdd1
Source noteuspto-grants-2007_02