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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 473823Generated: October 31, 2026

Potassium Carbonate → HCID 67506401, compound

https://huagongshe.com/reaction/473823

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 68756521HCID 68756521—
SolventEthyl AcetateHCID 8857—
SolventMethanol--water (1/1)HCID 22242641—
ProductHCID 67506401HCID 6750640199%

Reaction Steps

A suspention of (±)-(2R,4R)-tert-butyl 4-acetoxy-2-(4-fluorophenyl)piperidine-1-carboxylate (150 mg, 0.40 mmol) and potassium carbonate (1.0 g) in methanol:water 10:1 (11 mL) was stirred for 1 hour then diluted with ethyl acetate (40 mL) and washed with water (25 mL) and brine (25 mL). The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated to give (±)-(2R,4R)-tert-butyl 2-(4-fluorophenyl)-4-hydroxypiperidine-1-carboxylate (117 mg, 99% yield). 1H NMR (400 MHz, d6-DMSO): 7.17 (m, 4H), 5.34 (br d, 1H), 4.73 (d, 1H), 4.34 (br d, 1H), 3.41 (m, 1H), 2.67 (m, 1H), 2.42 (br d, 1H), 1.57 (m, 1H), 1.38 (s, 9H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08637499B2
Source datasetuspto-grants-2014_01
ORD IDord-75c7ec9095a84081b3358240620d6547
Source noteuspto-grants-2014_01