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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1406405Generated: October 31, 2026

Dichloromethane → HCID 66854719, compound

https://huagongshe.com/reaction/1406405

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantPotassium CarbonateHCID 11430—
Reactant1-(tert-Butoxycarbonyl)indole-2-boronic Acid (contains varying amounts of Anhydride)HCID 2773302—
ReactantHCID 58117291HCID 58117291—
CatalystPalladium ChlorideHCID 24290—
CatalystFerrocene-1,1'-bis-(diphenylphosphine)HCID 635956—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 66854719HCID 66854719—

Reaction Conditions

Temperature60 °C

Reaction Steps

A microwave vial (20 mL) was charged with intermediate (5d), 5-iodo-methyl-6-oxo-1-(2-trimethylsilanyl-ethoxymethyl)-1,6-dihydro-pyridine-3-carboxylic acid ethyl ester (0.87 g, 1.99 mmol), potassium carbonate (0.825 g, 5.97 mmol), 1-(tert-butoxycarbonyl) indole-2-boronic acid (0.624 g, 2.39 mmol), [1,1′-Bis(diphenylphosphino)ferrocene)]dichloropalladium(II), complex with dichloromethane (0.082 g, 5 mol %), tetrahydrofuran (14 mL) and water (2.3 mL). The contents of the vial were degassed and then heated at 60° C. for 1 hour under microwave irradiation. After cooling, the reaction mixture was partitioned between brine (50 mL) and ethyl acetate (50 mL). The organic layer was separated, dried (Na2SO4) and concentrated in vacuo. The resultant crude product was purified by flash chromatography on SiO2 with hexane—15% ethyl acetate/hexane (gradient) to afford the title compound as a yellow foam, 1.02 g, 97%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08916591B2
Source datasetuspto-grants-2014_12
ORD IDord-492e087285fa45dc8e63bb86617fbdff
Source noteuspto-grants-2014_12