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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 722236Generated: October 30, 2026

Water → 4-Piperidinecarboxylic acid, 1-(2-amino-4-fluorophenyl)-, hydrochloride (1:1)

https://huagongshe.com/reaction/722236

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantStannous ChlorideHCID 24479—
Reactant1-(4-Fluoro-2-nitrophenyl)piperidine-4-carboxylic acidHCID 21883881—
SolventEthyl AcetateHCID 8857—
Product4-Piperidinecarboxylic acid, 1-(2-amino-4-fluorophenyl)-, hydrochloride (1:1)HCID 69437037—

Reaction Steps

The solution of 804 mg of 1-(4-fluoro-2-nitrophenyl)piperidine-4-carboxylic acid in 40 ml of ethyl acetate was admixed with 3.8 g of tin(II) chloride and stirred at RT for 2 hours. 50 ml of water were then added and the mixture was filtered through a clarifying layer. The ethyl acetate phase was removed, dried over sodium sulfate and concentrated by rotary evaporator, leaving a semisolid residue which was subjected directly to further reaction.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07138414B2
Source datasetuspto-grants-2006_11
ORD IDord-d670a9bbec454d9b8a7d2294061c64b5
Source noteuspto-grants-2006_11