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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 128964Generated: October 27, 2026

Water → 3-(1-methyl-1,2,3,6-tetrahydropyridin-4-yl)-1H-indole-5-carbonitrile

https://huagongshe.com/reaction/128964

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium HydroxideHCID 14797—
ReactantIndole-5-carbonitrileHCID 27513—
Reactant1-Methyl-4-piperidoneHCID 74049—
SolventMethanolHCID 887—
Product3-(1-methyl-1,2,3,6-tetrahydropyridin-4-yl)-1H-indole-5-carbonitrileHCID 1497321697.6%

Reaction Steps

5-Cyanoindole (Aldrich, 20.0 g) was added to a solution of KOH (22.4 g) in methanol (200 ml). N-Methyl-4-piperidone (Aldrich, 40.4 g) was then added dropwise and the resulting mixture refluxed for 4 hours, then cooled and poured into water. The resulting precipitate was filtered off and dried to give the desired product as a pale pink crystalline solid (32.6 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05466699
Source datasetuspto-grants-1995_11
ORD IDord-928466b98a0c49e2bfc4209e9e3c633b
Source noteuspto-grants-1995_11