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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1461390Generated: November 1, 2026

Ammonium Hydroxide → HCID 178516142, compound

https://huagongshe.com/reaction/1461390

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium HydroxideHCID 14923—
Reactant1,1,1,7,7,7-Hexafluoroheptane-2,4,6-trioneHCID 11528917—
ProductHCID 178516142HCID 178516142—

Reaction Conditions

Temperature130 °C

Reaction Steps

A mixture of 30 g 1,5-di(trifluoromethyl)-1,3,5-trioxopentane and 125 ml 28% aqueous ammonium hydroxide was heated in an autoclave at 130° C. for 5 hours. The reaction mixture was concentrated in vacuo, dissolved in 350 ml ethanol and treated with 11 ml 6N hydrochloric acid. The resulting mixture was concentrated in vacuo, 100 ml water added to the residue and filtered to give 8.0 g 2,6-di(trifluoromethyl)-4-hydroxypyridine, m.p. 123°-130° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05075319
Source datasetuspto-grants-1991_12
ORD IDord-2c61e2985da2400bb1878f8c245bf51c
Source noteuspto-grants-1991_12