Tetrahydrofuran → 4-(3,5-Di-tert-butyl-4-methoxy-phenylethynyl)-2-fluoro-phenyl-acetic acid methyl ester

HRID 1861519Notes

Reaction equation

HRID 1861519 reaction equation
[C:1]([C:5]1[CH:10]=[C:9]([C:11]#[CH:12])[CH:8]=[C:7]([C:13]([CH3:16])([CH3:15])[CH3:14])[C:6]=1[O:17][CH3:18])([CH3:4])([CH3:3])[CH3:2].C(O[C:23]1[CH:28]=[CH:27][C:26](I)=[C:25]([CH3:30])[C:24]=1[F:31])(=O)C.C(N(CC)CC)C.O1CCCC1.[C:44]([O:47][CH2:48]C)(=[O:46])C>CCCCCC.[Cu]I.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH3:48][O:47][C:44](=[O:46])[CH2:30][C:25]1[CH:26]=[CH:27][C:28]([C:12]#[C:11][C:9]2[CH:10]=[C:5]([C:1]([CH3:4])([CH3:2])[CH3:3])[C:6]([O:17][CH3:18])=[C:7]([C:13]([CH3:16])([CH3:15])[CH3:14])[CH:8]=2)=[CH:23][C:24]=1[F:31]

Participants

9

Reactant 5

HCID 8028TetrahydrofuranHCID 8471TriethylamineHCID 8857Ethyl AcetateHCID 225688511,3-Di-tert-butyl-5-ethynyl-2-methoxy-benzene2×HCID 69548383Methyl-2-fluoro-4-iodo-phenyl acetate

Product 1

HCID 695488624-(3,5-Di-tert-butyl-4-methoxy-phenylethynyl)-2-fluoro-phenyl-acetic acid methyl esterYield 89%

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 8058HexaneSolvent

Procedure

Following General Procedure F and using 1,3-di-tert-butyl-5-ethynyl-2-methoxy-benzene (Intermediate 169, 0.087 g, 0.33 mmol), methyl-2-fluoro-4-iodo phenyl acetate (Reagent H, 0.088 g, 0.30 mmol), triethyl amine (5 mL), anhydrous tetrahydrofuran (10 mL), copper(I)iodide (0.02 g, 0. 1 mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.06 g, 0.085 mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 10% ethyl acetate in hexane as the eluent, the title compound (0. 122 g, 89%) was obtained.

Sources & evidence

ORD record
ord-37f349bb8a894dcc86c032a2e28325ac
Source dataset
uspto-grants-2003_03
Patent number
US06531599B2

Reaction notes

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