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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 521818Generated: October 30, 2026

Picolinic acid → HCID 2771595, compound

https://huagongshe.com/reaction/521818

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPicolinic acidHCID 1018—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
ReactantEthyl 2-amino-2-cyanoacetateHCID 288716—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
SolventTetrahydrofuranHCID 8028—
ProductHCID 2771595HCID 277159530%

Reaction Steps

To a solution of picolinic acid (1.23 g, 10 mmol), EDC.HCl (1.91 g, 10 mmol) and HOBT (1.35 g, 10 mmol) in THF (80 mL) was added DIPEA (3.6 g, 30 mmol) at ambient temperature. The reaction mixture was maintained at the same temperature for 1 hr at which time a solution of ethyl 2-amino-2-cyanoacetate (1.28 g, 10 mmol) in THF (5 mL) was added. The reaction mixture was stirred at ambient temperature for additional 6 hr. It was then concentrated, and the residue was purified by silica gel column chromatography (5:1 PE/EtOAc) to give ethyl 2-cyano-2-(picolinamido)acetate (0.7 g, 30%) as yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09328106B2
Source datasetuspto-grants-2016_05
ORD IDord-604a8e8f4a4640b0a14f5be0b4bc902d
Source noteuspto-grants-2016_05