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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 572872Generated: October 30, 2026

Water → HCID 66836003, compound

https://huagongshe.com/reaction/572872

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 66835900HCID 66835900—
Catalystpalladium(II) acetateHCID 167845—
SolventDimethylformamideHCID 6228—
ProductHCID 66836003HCID 66836003—

Reaction Conditions

Temperature120 °C

Reaction Steps

To a solution of 5-{3-[(1H-benzimidazol-2-yl)(1-methylpiperidin-4-yloxy)-methyl]phenyl}pent-4-ynylamine (200 mg) in N,N-dimethylformamide (1.8 mL) are added water (0.05 mL), potassium hydroxide (42 mg) and palladium(II) acetate. The tube is evacuated, filled with argon and sealed. After stirring at 120° C. for 24 h, the mixture is filtered on celite, and the solvent removed under reduced pressure.diluted with water and the aqueous phase is extracted with ethyl acetate. The pooled organic extracts are washed with water, dried over magnesium sulfate and concentrated under reduced pressure. The residue is purified by chromatography (gradient dichloromethane/methanol/ammonia from 90/10/0 to 90/10/1) to give 5-{3-[(1H-benzimidazol-2-yl)(1-methylpiperidin-4-yloxy)methyl]phenyl}pent-4-enylamine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09029357B2
Source datasetuspto-grants-2015_05
ORD IDord-a6b28173b6764173bbe445befd2d0c08
Source noteuspto-grants-2015_05