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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 395081Generated: October 29, 2026

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

https://huagongshe.com/reaction/395081

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 numberUS06603019B2
Source datasetuspto-grants-2003_08
ORD IDord-7185beb114ab49f19c1502884746212b
Source noteuspto-grants-2003_08