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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 278691Generated: November 1, 2026

Triethylamine → [4-(8-Ethyl-2,2,4,4-tetramethyl-chroman-6-ylethynyl) phenyl]acetic acid methyl ester

https://huagongshe.com/reaction/278691

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantMethyl 4-IodophenylacetateHCID 10378700—
Reactant8-Ethyl-6-ethynyl-2,2,4,4-tetramethylchromanHCID 22569019—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
CatalystHCID 178418476HCID 178418476—
SolventTetrahydrofuranHCID 8028—
Product[4-(8-Ethyl-2,2,4,4-tetramethyl-chroman-6-ylethynyl) phenyl]acetic acid methyl esterHCID 69548054—

Reaction Steps

Following general procedure F and using 8-ethyl-6-ethynyl-2,2,4,4-tetramethylchroman (Intermediate 48, 0.033 g, 0.136 mmol), methyl-4-iodo phenyl acetate (Reagent B, 0.034 g, 0.12 mmol), triethyl amine (2 mL), tetrahydrofuran (2 mL), copper(I)iodide (0.025 g, 0.13 mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.075 g, 0.11 mmol) the title compound was obtained (0.035 g, 73%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06359135B1
Source datasetuspto-grants-2002_03
ORD IDord-9d1a5190d2dc43f183c4019e79110fbf
Source noteuspto-grants-2002_03