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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1594940Generated: October 30, 2026

Pyridine → HCID 21707201, compound

https://huagongshe.com/reaction/1594940

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantMethylamineHCID 6329—
Reactant3'-Hydroxyphenylacetic acidHCID 12122—
ReactantOxalyl chlorideHCID 65578—
SolventDichloromethaneHCID 6344—
ProductHCID 21707201HCID 2170720124%

Reaction Steps

A solution of 3-hydroxyphenylacetic acid (1.00 g, 6.57 mmol) and oxalyl chloride (0.63 mL, 7.22 mmol) in methylene chloride (20 mL) was treated dropwise with pyridine (0.6 mL, 7.37 mmol), stirred for 90 min, poured into 40% aqueous methylamine (30 mL), stirred for 15 min, concentrated, dissolved into 1M HCl and extracted with ethyl acetate. The extracts were washed with brine, dried (MgSO4) and concentrated. The residue was chromatographed on silica gel with ethyl acetate to provide 260 mg of the title compound. MS (DCI/NH3) m/e 166 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06284796B1
Source datasetuspto-grants-2001_09
ORD IDord-f6f054b7e0b74484a557f8392c0cc8e2
Source noteuspto-grants-2001_09