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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 964867Generated: October 31, 2026

Pyridine → HCID 19074007, compound

https://huagongshe.com/reaction/964867

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantDimethylformamideHCID 6228—
ReactantHydrazineHCID 9321—
ReactantTetrafluorophthalic anhydrideHCID 69545—
ProductHCID 19074007HCID 1907400787%

Reaction Steps

Tetrafluorophthalic anhydride (400 mg, 1.8 mmol) is dissolved in 10 mL of anhydrous N,N-dimethylformamide (DMF) that contains anhydrous pyridine (0.47 mL, 5.8 mmol). To the solution is slowly added hydrazine (64 mg, 2.0 mmol). The resulting mixture is stirred overnight. The reaction mixture is concentrated in vacuo, and the residue is poured into water (200 mL). The precipitate formed is collected by filtration, washed with water and air-dried to give Compound 43 (369 mg, yield: 87%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05773236
Source datasetuspto-grants-1998_06
ORD IDord-943e695952cf4cab8fbdceea88c46fd9
Source noteuspto-grants-1998_06