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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 841384Generated: October 26, 2026

Tetrahydrofuran → [4-(1-Cyclopropyl-4,4-dimethyl-1,2,3,4-tetrahydro-quinolin-6-yl-ethynyl)-2-fluoro-phenyl] acetic acid ethyl ester

https://huagongshe.com/reaction/841384

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantTriethylamineHCID 8471—
ReactantEthyl 2-fluoro-4-iodophenylacetateHCID 18740710—
Reactant4-[(8-Cyclopropyl-3 4-dihydro-4,4-dimethylspiro[2H-1-benzopyran-2,1'-cyclopropane]-6-yl)ethynyl]-2-fluoro-benzoic acid methyl esterHCID 69548418—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
CatalystHCID 178418476HCID 178418476—
SolventHexaneHCID 8058—
SolventEthyl AcetateHCID 8857—
Product[4-(1-Cyclopropyl-4,4-dimethyl-1,2,3,4-tetrahydro-quinolin-6-yl-ethynyl)-2-fluoro-phenyl] acetic acid ethyl esterHCID 69548552—

Reaction Steps

Following general procedure F and using 1-cyclopropyl-6-ethynyl-4,4-dimethyl-1,2,3,4-tetrahydro quinoline (Intermediate 53, 0.1 g, 0.49 mmol), ethyl-2-fluoro-4-iodo-phenyl acetate (Reagent C, 0.11 g, 0.9 mmol), triethyl amine (3 mL), tetrahydrofuran (3 mL), copper(I)iodide (0.06 g, 0.32 mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.25 g, 0.36 mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 10% ethyl acetate in hexane as the eluent, the title compound was obtained (0.1 g, 51%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06369225B1
Source datasetuspto-grants-2002_04
ORD IDord-fb1fa39139054992993e45c38d1c8071
Source noteuspto-grants-2002_04