Triethylamine → HCID 69074977, compound

HRID 2377366Notes

Reaction equation

HRID 2377366 reaction equation
[CH3:1][C:2]([CH3:24])([CH3:23])[CH2:3][O:4][C:5]([C:7]1[CH:8]=[C:9]([C:21]#[CH:22])[CH:10]=[C:11]2[C:16]=1[O:15][C:14]([CH3:18])([CH3:17])[CH2:13][C:12]2([CH3:20])[CH3:19])=[O:6].[CH3:25][O:26][C:27](=[O:36])[CH2:28][C:29]1[CH:34]=[CH:33][C:32](I)=[CH:31][CH:30]=1.C(N(CC)CC)C.C(OCC)(=O)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>[CH3:1][C:2]([CH3:24])([CH3:23])[CH2:3][O:4][C:5]([C:7]1[CH:8]=[C:9]([C:21]#[C:22][C:32]2[CH:33]=[CH:34][C:29]([CH2:28][C:27]([O:26][CH3:25])=[O:36])=[CH:30][CH:31]=2)[CH:10]=[C:11]2[C:16]=1[O:15][C:14]([CH3:17])([CH3:18])[CH2:13][C:12]2([CH3:20])[CH3:19])=[O:6]

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 8857Ethyl AcetateHCID 10378700Methyl 4-IodophenylacetateHCID 57424229HCID 57424229, compound2×

Product 1

HCID 69074977HCID 69074977, compound

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 B and using 6-ethynyl-2,2,4,4-tetramethylchroman-8-carboxylic acid 2,2-dimethylpropyl ester (Intermediate 48, 0.227 g, 0.70 mmol), 4-iodo phenyl acetic acid methyl ester (0.23 g, 0.83 mmol), triethyl amine (3 mL), copper(I)iodide (0.07 g, 0.39 mmol) and dichlorobis(triphenylphosphine)palladium(II) (0.15 g, 0.21 mmol) followed by flash column chromatography over silica gel (230-400 mesh) using 20% ethyl acetate in hexane as the eluent, the title compound was obtained as a yellow oil (0.198 g, 60%).

Sources & evidence

ORD record
ord-03f70020b1a34c06ab15385d14117ec9
Source dataset
uspto-grants-2008_12
Patent number
US07468391B2

Reaction notes

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