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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 42175Generated: October 26, 2026

Triethylamine → 6-((2R,5S)-2,5-Dimethyl-piperazin-1-yl)-nicotinonitrile

https://huagongshe.com/reaction/42175

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant2,5-Dimethylpiperazine, trans-HCID 220672—
Reactant6-Chloro-3-pyridinecarbonitrileHCID 5152094—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product6-((2R,5S)-2,5-Dimethyl-piperazin-1-yl)-nicotinonitrileHCID 574716109%

Reaction Steps

Combine (2S,5R)-2,5-dimethyl-piperazine (200 mg, 1.75 mmol), 6-chloro-nicotinonitrile (1.75 mmol) and triethylamine (5.25 mmol) in a 0.875 M solution of 1-methyl-2-pyrrolidinone. Microwave reaction mixture for 30 min at 150° C. Partition between ethyl acetate and water, collecting organic phase. Wash aqueous layer again with ethyl acetate and combine organics. Dry with sodium sulfate, filter and concentrate. Purify on preparative HPLC to give the title compound. (9% yield)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08536168B2
Source datasetuspto-grants-2013_09
ORD IDord-bc5f400ac57641de862139b65cf0bb17
Source noteuspto-grants-2013_09