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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 841358Generated: November 4, 2026

Triethylamine → [4-(8-Cyclopropyl-2,2,4,4-tetramethyl-chroman-6-yl-ethvnyl)-2-fluorophenyl]acetic acid ethyl ester

https://huagongshe.com/reaction/841358

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantEthyl 2-fluoro-4-iodophenylacetateHCID 18740710—
Reactant8-Cyclopropyl-6-ethynyl-2,2,4,4-tetramethylchromanHCID 22569006—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
CatalystHCID 178418476HCID 178418476—
SolventTetrahydrofuranHCID 8028—
Product[4-(8-Cyclopropyl-2,2,4,4-tetramethyl-chroman-6-yl-ethvnyl)-2-fluorophenyl]acetic acid ethyl esterHCID 69548621—

Reaction Steps

Following general procedure F and using 8-cyclopropyl-6-ethynyl-2,2,4,4-tetramethylchroman (Intermediate 34, 0.096 g, 0.38 mmol), ethyl-2-fluoro-4-iodo phenyl acetate (Reagent C, 0.104 g, 0.34 mmol), triethyl amine (3 mL), tetrahydrofuran (3 mL), copper(I)iodide (0.020 g, 0.1 mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.060 g, 0.085 mmol) the title compound was obtained (0.14 g, 85%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06369225B1
Source datasetuspto-grants-2002_04
ORD IDord-564af3db38f145aab6c8c5743818eacc
Source noteuspto-grants-2002_04