Triethylamine → Ethyl4-[4-(1-isopropoxycyclopropyl)-3-ethyl-phenylethynyl]-benzoate

HRID 1861428Notes

Reaction equation

HRID 1861428 reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([C:9]2([O:12][CH:13]([CH3:15])[CH3:14])[CH2:11][CH2:10]2)=[CH:5][C:4]=1CC)#[CH:2].[CH2:18]([O:20][C:21](=[O:29])[C:22]1[CH:27]=[CH:26][C:25](I)=[CH:24][CH:23]=1)[CH3:19].[CH2:30](N(CC)CC)[CH3:31]>[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>[CH:13]([O:12][C:9]1([C:6]2[CH:5]=[CH:4][C:3]([C:1]#[C:2][C:25]3[CH:26]=[CH:27][C:22]([C:21]([O:20][CH2:18][CH3:19])=[O:29])=[CH:23][CH:24]=3)=[CH:8][C:7]=2[CH2:30][CH3:31])[CH2:10][CH2:11]1)([CH3:14])[CH3:15]

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 142891Ethyl 4-iodobenzoate2×HCID 225688704-Ethynyl-1-(1-isopropoxycyclopropyl)-3-ethyl-benzene2×

Product 1

HCID 22568979Ethyl4-[4-(1-isopropoxycyclopropyl)-3-ethyl-phenylethynyl]-benzoateYield 71%

Reagents, catalysts & solvents 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalyst

Procedure

Using General Procedure F; 4-ethynyl-1-(1-isopropoxycyclopropyl)-3-ethyl-benzene (Intermediate 95, 108.0 mg, 0.47 mmol) and ethyl-4-iodo benzoate (Reagent A, 130.0 mg, 0.47 mmol) in triethylamine (5 mL) was treated with copper(I)iodide (30.0 mg, 0.16 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)-palladium(II) (110 mg, 0.16 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-4% EtOAc-hexanes) afforded 125.0 mg (71%) of the title compound as an oil.

Workup

  1. customsparged with argon for 5 minutes

Sources & evidence

ORD record
ord-d7690a2801c24b549598c4f9722a0f48
Source dataset
uspto-grants-2003_03
Patent number
US06531599B2

Reaction notes

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