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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 381052Generated: October 30, 2026

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

https://huagongshe.com/reaction/381052

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 numberUS06303785B1
Source datasetuspto-grants-2001_10
ORD IDord-610b7c6be0fb43dab87ce0c04ea6c967
Source noteuspto-grants-2001_10