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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1721155Generated: November 1, 2026

Picolinic acid → HCID 67726721, compound

https://huagongshe.com/reaction/1721155

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPicolinic acidHCID 1018—
Reactant(1R,2R)-(+)-1,2-DiphenylethylenediamineHCID 2724998—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
ProductHCID 67726721HCID 6772672171%

Reaction Steps

A solution of (1R,2R)-1,2-diphenylethylenediamine (1.16 g, 4.74 mmol), picolinic acid (596 mg, 4.79 mmol, 1.01 eq.), N,N-dimethyl-4-aminopyridine (100 mg, 0.82 mmol, 0.17 eq.) and 1,3-dicyclohexycarbodiimide (1.07 g, 5.2 mmol, 1.1 eq.) in dichloromethane (40 ml) was stirred at room temperature under N2 for 18 hours. The reaction mixture was filtered and washed with water. Column chromatography on silica gel using EtOAc/CH2Cl2 (4:1) afforded 1.06 g of white solids as title compound (71% yield). NMR and GCMS confirmed the structure.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05508458
Source datasetuspto-grants-1996_04
ORD IDord-07570611b70f4f08ae65f215b2d25557
Source noteuspto-grants-1996_04