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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 588246Generated: October 25, 2026

Picolinic acid → HCID 66653709, compound

https://huagongshe.com/reaction/588246

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPicolinic acidHCID 1018—
ReactantPotassium Phosphate, TribasicHCID 62657—
Reactant2,3-DimethyliodobenzeneHCID 141645—
Reactant2-(4-Hydroxy-phenyl)-morpholine-4-carboxylic acid tert-butyl esterHCID 66654239—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventDimethyl SulfoxideHCID 679—
SolventSodium chloride; waterHCID 57417360—
ProductHCID 66653709HCID 66653709—

Reaction Conditions

Temperature90 °C

Reaction Steps

To a degassed solution of 2-(4-hydroxy-phenyl)-morpholine-4-carboxylic acid tert-butyl ester (10.23 g; 36.6 mmol), and 1-iodo-2,3-dimethyl-benzene (10.62 g; 45.8 mmol) in DMSO (50 mL), was added picolinic acid (0.90 g; 7.3 mmol), CuI (0.70 g; 3.7 mmol) and K3PO4 (15.55 g; 73.3 mmol). The resulting mixture was heated overnight, at 90° C. After cooling to RT, brine was added and the mixture extracted with CH2Cl2. The combined organic layers were dried (Na2SO4), filtered and concentrated in vacuo. The residue was purified by column chromatography (SiO2, CH2Cl2) to afford 2-[4-(2,3-dimethyl-phenoxy)-phenyl]-morpholine-4-carboxylic acid tert-butyl ester.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09227960B2
Source datasetuspto-grants-2016_01
ORD IDord-086bfd43b0534b3793b8fdd169a6f546
Source noteuspto-grants-2016_01