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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1450698Generated: October 31, 2026

Picolinic acid → HCID 67726721, compound

https://huagongshe.com/reaction/1450698

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 numberUS05602267
Source datasetuspto-grants-1997_02
ORD IDord-b24b6ec16135467e97f28d54c0cc0ede
Source noteuspto-grants-1997_02