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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2299801Generated: October 31, 2026

Hydrochloric Acid → HCID 22344575, compound

https://huagongshe.com/reaction/2299801

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium hydrideHCID 24758—
ReactantSodium BicarbonateHCID 516892—
Reactantmethyl (4E)-4-hydroxyimino-4-phenylbutanoateHCID 12137371—
Reactant5-Chloro-2-(4-chloromethylphenoxymethyl)imidazo[1,2-a]pyridineHCID 22344595—
SolventDimethylformamideHCID 6228—
SolventEthyl acetate hexaneHCID 21226206—
ProductHCID 22344575HCID 2234457567%

Reaction Steps

Sodium hydride (60%, in oil, 143 mg) was added to a solution of methyl E-4-(hydroxyimino)-4-phenylbutyrate (676 mg) and 5-chloro-2-(4-chloromethylphenoxymethyl)imidazo[1,2-a]pyridine (1.00 g) in N,N-dimethyformamide (10 ml) at room temperature and stirred for 1 hour. 1N hydrochloric acid (7 ml) was added, an aqueous saturated solution of sodium bicarbonate was added and extracted with ethyl acetate. The ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride, dried (MgSO4) and concentrated. The residue was subjected to silica gel chromatography to obtain methyl E-4-[4-(5-chloroimidazo[1,2-a]pyridin-2-ylmethoxy)benzyloxyimino]-4-phenylbutyrate (1.04 g, yield 67%) as a colorless oil from an ethyl acetate-hexane (2:1, v/v)-eluted fraction.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06495581B1
Source datasetuspto-grants-2002_12
ORD IDord-9c640516873e4499a5fd23a994b12e33
Source noteuspto-grants-2002_12