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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1681199Generated: November 2, 2026

Ammonium Hydroxide → HCID 178516142, compound

https://huagongshe.com/reaction/1681199

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 numberUS05169853
Source datasetuspto-grants-1992_12
ORD IDord-dec5f2061bb746b79ca7ef18cd3eadc1
Source noteuspto-grants-1992_12