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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1514934Generated: October 27, 2026

Diethylamine → Methyl 3-amino-4-(2,6-dichlorophenylethynyl)-benzoate

https://huagongshe.com/reaction/1514934

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethylamineHCID 8021—
ReactantMethyl 3-amino-4-iodobenzoateHCID 21628210—
ReactantBenzene, 1,3-dichloro-2-ethynyl-HCID 22271730—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
CatalystBis(acetonitrile)dichloropalladiumHCID 6093782—
SolventAcetonitrileHCID 6342—
ProductMethyl 3-amino-4-(2,6-dichlorophenylethynyl)-benzoateHCID 66966063—

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of methyl 3-amino-4-iodobenzoate (604 mg, 2.18 mmol) (from Example 3-4), 2,6-dichlorophenylacetylene (447 mg, 2.61 mmol), palladium (II) chloride bis(acetonitrile) (23 mg, 89 μmol), diethylamine (449 μL, 318 mg, 4.35 mmol), and copper (I) iodide (21 mg, 110 μmol) in acetonitrile (10 mL) was heated for 35 min at 120° C. in a microwave apparatus. The mixture was filtered, and the filtrate concentrated, then chromatographed using a gradient of 0-30% heptane/ethyl acetate to give methyl 3-amino-4-(2,6-dichlorophenylethynyl)-benzoate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08222248B2
Source datasetuspto-grants-2012_07
ORD IDord-ccc0e3edc632437db918d2fabb7704a6
Source noteuspto-grants-2012_07