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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 514815Generated: October 30, 2026

Hydrochloric Acid → HCID 90418937, compound

https://huagongshe.com/reaction/514815

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 90418907HCID 90418907—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 90418937HCID 90418937—

Reaction Conditions

Temperature40 °C

Reaction Steps

To a solution of tert-butyl-4-acetoxy-4-(3,3-difluorobutyl)piperidine-1-carboxylate (100 mg, 0.426 mmol) in MeOH (10 mL) and H2O (2 mL) was added NaOH (145 mg, 8.45 mmol). The resulting mixture was stirred at 40° C. for 4 h. After cooling to room temperature, the mixture was acidified with 2N HCl solution. After removal of MeOH, the resulting solution was extracted with ethyl acetate. The organic layer was dried over Na2SO4, filtered, and evaporated to dryness under reduced pressure to give the crude product which was used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09108921B2
Source datasetuspto-grants-2015_08
ORD IDord-86af83ece4ca41ffb612a0e110576e69
Source noteuspto-grants-2015_08