Ethyl 4-iodobenzoate → Ethyl 4-[4-(1-methoxycyclopropyl)-phenylethynyl]-benzoate

HRID 24139

Reaktionsgleichung

Reaktionsgleichung von HRID 24139
[CH2:1]([O:3][C:4](=[O:28])[C:5]1[CH:10]=[CH:9][C:8]([C:11]#[C:12][C:13]2[CH:14]=[C:15]3[C:20](=[CH:21][CH:22]=2)N(C2CC2)CCC3(C)C)=[CH:7][CH:6]=1)[CH3:2].[CH2:29]([O:31][C:32](=O)[C:33]1[CH:38]=CC(I)=CC=1)C>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>[CH3:29][O:31][C:32]1([C:20]2[CH:15]=[CH:14][C:13]([C:12]#[C:11][C:8]3[CH:9]=[CH:10][C:5]([C:4]([O:3][CH2:1][CH3:2])=[O:28])=[CH:6][CH:7]=3)=[CH:22][CH:21]=2)[CH2:33][CH2:38]1

Komponenten

6

Edukt 2

HCID 142891Ethyl 4-iodobenzoate2×HCID 695488784-(1-Cyclopropyl-4,4-dimethyl-1,2,3,4-tetrahydro-quinolin-6-yl-ethynyl)-benzoic acid ethyl ester2×

Produkt 1

HCID 22568838Ethyl 4-[4-(1-methoxycyclopropyl)-phenylethynyl]-benzoateAusbeute 90 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)KatalysatorHCID 178418476HCID 178418476, VerbindungKatalysatorHCID 8471TriethylamineLösungsmittel

Versuchsvorschrift

Using General Procedure F; 1-ethynyl-4-(1-methoxycyclopropyl)-benzene (Intermediate 61, 100.0 mg, 0.47 mmol) and ethyl-4-iodo benzoate (Reagent A, 141.0 mg, 0.51 mmol) in triethyl amine (6 mL) was treated with copper(I)iodide (30.0 mg, 0.16 mmol) and sparged with argon for 5 minutes. Dichlorobis(triphenylphosphine)palladium(II) (109 mg, 0.16 mmol) was added and the reaction mixture was stirred overnight at room temperature. Column chromatography (2-5% EtOAc—hexanes) afforded 135.0 mg (90%) of the title compound as an orange solid.

Aufarbeitung

  1. customsparged with argon for 5 minutes

Quellen und Nachweise

ORD-Eintrag
ord-53763d5dfaeb4d7d8aa20a0d93ef5d00
Quelldatensatz
uspto-grants-2005_02
Patentnummer
US06855512B2

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