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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1190954Generated: November 3, 2026

Potassium Hydroxide → HCID 58495683, compound

https://huagongshe.com/reaction/1190954

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium HydroxideHCID 14797—
ReactantCyclopentanethiolHCID 15510—
Reactant2-Chloro-5-(chloromethyl)pyridineHCID 155479—
SolventMethanolHCID 887—
ProductHCID 58495683HCID 5849568382%

Reaction Steps

Slurry 2-chloro-5-chloromethyl-pyridine (8.1 g, 45 mmol) and potassium hydroxide (10.3 g, 225 mmol) in methanol at 0° C. under nitrogen atmosphere. Add cyclopentyl mercaptan (4.8 mL, 45 mmol), warm the mixture to room temperature and stir for 16 h. Concentrate in vacuo and partition the residue between water (50 mL) and DCM (200 mL). Collect the organic phase, concentrate in vacuo and purify the crude mixture by chromatography on silica gel (330 g) eluting with hexane/EtOAc (49:1 to 4:1 gradient) to obtain the desired intermediate as an oil (8.4 g, 82%). MS (APCI+) m/z: 227 (M)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08680091B2
Source datasetuspto-grants-2014_03
ORD IDord-e91cdffa4c3d44e894ac26d399d45091
Source noteuspto-grants-2014_03