1-(1-Ethoxycyclopropyl)-4-ethynyl-2-tert-butylbenzene → HCID 22568931, compound

HRID 51763Notes

Reaction equation

HRID 51763 reaction equation
[CH2:1]([O:3][C:4]1([C:7]2[CH:12]=[CH:11][C:10]([C:13]#[CH:14])=[CH:9][C:8]=2[C:15]([CH3:18])([CH3:17])[CH3:16])[CH2:6][CH2:5]1)[CH3:2].C(O)(=O)C1C=CC=CC=1.[CH2:28]([O:30][C:31](=[O:39])[C:32]1[CH:37]=[CH:36][C:35](I)=[CH:34][CH:33]=1)[CH3:29]>C(N(CC)CC)C.[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>[CH2:1]([O:3][C:4]1([C:7]2[CH:12]=[CH:11][C:10]([C:13]#[C:14][C:35]3[CH:36]=[CH:37][C:32]([C:31]([O:30][CH2:28][CH3:29])=[O:39])=[CH:33][CH:34]=3)=[CH:9][C:8]=2[C:15]([CH3:17])([CH3:16])[CH3:18])[CH2:6][CH2:5]1)[CH3:2]

Participants

6

Reactant 2

HCID 225688751-(1-Ethoxycyclopropyl)-4-ethynyl-2-tert-butylbenzene2×HCID 69887287Ethyl-4-iodo-benzoate benzoate2×

Product 1

HCID 22568931HCID 22568931, compoundYield 73%

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 8471TriethylamineSolvent

Procedure

Using General Procedure F; 1-(1-ethoxycyclopropyl)-4-ethynyl-2-tert-butylbenzene (Intermediate 112, 70.0 mg, 0.30 mmol) and ethyl-4-iodo benzoate (Reagent A, 85.0 mg, 0.30 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (19.0 mg, 0.01 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)-palladium(II) (70 mg, 0.01 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (1-2% EtOAc-hexanes) afforded 70.0 mg (73%) of the title compound.

Workup

  1. customsparged with argon for 5 minutes

Sources & evidence

ORD record
ord-fd8f2eb4d3cd4161ad3408f1062379e0
Source dataset
uspto-grants-2004_03
Patent number
US06713647B2

Reaction notes

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