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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1505334Generated: November 1, 2026

Hydrazine hydrate (1:1) → HCID 16641867, compound

https://huagongshe.com/reaction/1505334

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant2-(2,6-Dimethylphenoxy)-5-nitropyridineHCID 12675956—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
ProductHCID 16641867HCID 16641867190.7%

Reaction Conditions

Temperature90 °C

Reaction Steps

In a 50 mL round-bottomed flask 2-[(2,6-dimethylphenyl)oxy]-5-nitropyridine (Intermediate 41, 555.9 mg) was dissolved in ethanol (10 mL) to give a pale orange solution. Palladium on carbon (230 mg, 0.216 mmol) and hydrazine hydrate (0.416 mL, 4.32 mmol) were added. The reaction mixture was stirred at 90° C. After 3 hours the reaction was completed. The reaction mixture was filtered and the organic phase was evaporated under vacuum to afford 929.9 mg of a dark orange solid that was charged on a 10 g SCX cartridge. It was then flushed with 200 mL of ethanol followed by 50 mL of 2M solution of ammonia in MeOH. The ammonia eluate was evaporated under vacuum to afford the title compound as dark orange solid (447.6 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09216967B2
Source datasetuspto-grants-2015_12
ORD IDord-fca02dd9a8a14bf6abea1962f7c92256
Source noteuspto-grants-2015_12