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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2171511Generated: November 2, 2026

Diisopropylethylamine → Tert-butyl 3-[(5-cyanopyridin-2-yl)amino]piperidine-1-carboxylate

https://huagongshe.com/reaction/2171511

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant1-BOC-3-AminopiperidineHCID 545809—
Reactant6-Chloro-3-pyridinecarbonitrileHCID 5152094—
SolventDimethyl SulfoxideHCID 679—
ProductTert-butyl 3-[(5-cyanopyridin-2-yl)amino]piperidine-1-carboxylateHCID 57911756—

Reaction Conditions

Temperature140 °C

Reaction Steps

1.0 g (4.99 mmol) of tert-butyl 3-aminopiperidine-1-carboxylate and 1.383 g (9.99 mmol) of 6-chloropyridine-3-carbonitrile and 1.29 g (9.99 mmol) of diisopropylethylamine are suspended in 40 ml of DMSO and heated in a microwave at 140° C. for 45 min. The mixture is substantially freed of DMSO by kugelrohr distillation, water is added, and the precipitate which separates out is filtered off. Drying under high vacuum results in 2.24 g (46% of theory) of the product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09051323B2
Source datasetuspto-grants-2015_06
ORD IDord-c86405c236144cdb855ed578264aa1c1
Source noteuspto-grants-2015_06