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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1684014Generated: October 30, 2026

Water → HCID 19041641, compound

https://huagongshe.com/reaction/1684014

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant2-AminopyridineHCID 10439—
ReactantOxalyl chlorideHCID 65578—
ReactantHCID 19041674HCID 19041674—
CatalystDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
ProductHCID 19041641HCID 1904164121.4%

Reaction Conditions

Temperature0 °C

Reaction Steps

To the acid of Example 4, (400 mg, 0.96 mmol) in 30 mL CH2Cl2 at 0° C. was added a few drops of DMF followed by oxalyl chloride (100 μL, 1.15 mmol, dropwise). The reaction was stirred 15 min at 0° C., and then 2-amino pyridine (306 mg, 3.26 mmol) was added. The reaction mixture was stirred overnight at r.t., poured into water and extracted with ethyl acetate. The organic layer was washed with brine, dried over MgSO4 and evaporated in vacuo. Purification by flash chromatography (20%, ethyl acetate in hexane) provided 101 mg of the title compound as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05639780
Source datasetuspto-grants-1997_06
ORD IDord-6f9a7429720c443fb2b9aff8df61fccc
Source noteuspto-grants-1997_06