Ethyl 4-iodobenzoate → Ethyl4-[4-(1-propylamino-cyclopropyl)-phenylethynyl]-benzoate

HRID 844757Notes

Reaction equation

HRID 844757 reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([C:9]2([NH:12][CH2:13][CH2:14][CH3:15])[CH2:11][CH2:10]2)=[CH:5][CH:4]=1)#[CH:2].[CH2:16]([O:18][C:19](=[O:27])[C:20]1[CH:25]=[CH:24][C:23](I)=[CH:22][CH:21]=1)[CH3:17]>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>[CH2:13]([NH:12][C:9]1([C:6]2[CH:7]=[CH:8][C:3]([C:1]#[C:2][C:23]3[CH:24]=[CH:25][C:20]([C:19]([O:18][CH2:16][CH3:17])=[O:27])=[CH:21][CH:22]=3)=[CH:4][CH:5]=2)[CH2:10][CH2:11]1)[CH2:14][CH3:15]

Participants

6

Reactant 2

HCID 142891Ethyl 4-iodobenzoate2×HCID 22568926[1-(4-Ethynylphenyl)-cyclopropyl]-propylamine2×

Product 1

HCID 22568896Ethyl4-[4-(1-propylamino-cyclopropyl)-phenylethynyl]-benzoateYield 61%

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-(4-ethynylphenyl)-cyclopropyl]-propylamine (Intermediate 120, 38.0 mg, 0.19 mmol) and ethyl-4-iodo benzoate (Reagent A, 58.0 mg, 0.21 mmol) in triethyl amine (6 mL) was treated with copper(I)iodide (8.0 mg, 0.04 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)palladium(II) (27 mg, 0.04 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (5-15% EtOAc-hexanes) afforded 40.0 mg (61%) of the title compound as an orange oil.

Workup

  1. customsparged with argon for 5 minutes

Sources & evidence

ORD record
ord-ed2c1d455b344fd48f37a2d352287c5e
Source dataset
uspto-grants-2002_04
Patent number
US06380256B1

Reaction notes

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