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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 564881Generated: November 3, 2026

Dichloromethane → HCID 18630839, compound

https://huagongshe.com/reaction/564881

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 18319934HCID 18319934—
SolventHydrochloric AcidHCID 313—
ProductHCID 18630839HCID 18630839—

Reaction Conditions

Temperature75 °C

Reaction Steps

A mixture of intermediate 12 (0.032 mol) in HCl, (6N; 90 ml) was stirred at 75° C., then cooled. CH2Cl2 was added and the mixture was alkalized with NaOH at a temperature below 20° C. The organic layer was separated, dried, filtered and the solvent was evaporated. The residue was dried, yielding 7.2 g of 2-[(3,4-difluorophenyl)methyl]-4-piperidinone (intermediate 13).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06169097A
Source datasetuspto-grants-2001_01
ORD IDord-a640baa4194241c9961360928af8ed94
Source noteuspto-grants-2001_01