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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1185322Generated: November 1, 2026

4-Fluoropiperidine hydrochloride → 4-fluoro-1-(1-methyl-4-nitro-1H-pyrazol-5-yl)piperidine

https://huagongshe.com/reaction/1185322

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Fluoropiperidine hydrochlorideHCID 2759158—
Reactant5-chloro-1-methyl-4-nitro-1H-pyrazoleHCID 12344836—
Product4-fluoro-1-(1-methyl-4-nitro-1H-pyrazol-5-yl)piperidineHCID 5846475599%

Reaction Steps

Reaction of 5-chloro-1-methyl-4-nitro-1H-pyrazole and 4-fluoropiperidine hydrochloride gave 4-fluoro-1-(1-methyl-4-nitro-1H-pyrazol-5-yl)piperidine as a white solid (280 mg, 99%). 1H NMR (400 MHz, CDCl3) δ 8.02 (s, 1H), 4.86 (dtt, J=47.9, 7.1, 3.6 Hz, 1H), 3.77 (s, 3H), 3.37 (d, J=9.4 Hz, 2H), 3.20-3.12 (m, 2H), 2.16-2.06 (m, 1H), 2.07-1.92 (m, 3H)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08669361B2
Source datasetuspto-grants-2014_03
ORD IDord-74b7d5fbb43444ac9a557347a1b373d7
Source noteuspto-grants-2014_03