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Potassium Carbonate → (1R,2S)-2-(4-chlorophenyl)-1'-(1-trityl-1 H-imidazol-4-yl)spiro[cyclopropane-1,3'-indolin]-2'-one

HRID 1805387
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1805387
I[C:2]1[N:3]=[CH:4][N:5]([C:7]([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH:6]=1.[Cl:26][C:27]1[CH:32]=[CH:31][C:30]([C@@H:33]2[C@:35]3([C:43]4[C:38](=[CH:39][CH:40]=[CH:41][CH:42]=4)[NH:37][C:36]3=[O:44])[CH2:34]2)=[CH:29][CH:28]=1.C(=O)([O-])[O-].[K+].[K+].CN(C)CCN>C(#N)C.[Cu]I>[Cl:26][C:27]1[CH:28]=[CH:29][C:30]([C@H:33]2[C@@:35]3([C:43]4[C:38](=[CH:39][CH:40]=[CH:41][CH:42]=4)[N:37]([C:2]4[N:3]=[CH:4][N:5]([C:7]([C:8]5[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=5)([C:20]5[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=5)[C:14]5[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=5)[CH:6]=4)[C:36]3=[O:44])[CH2:34]2)=[CH:31][CH:32]=1
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Komponenten

7

Edukt 4

HCID 11430Potassium CarbonateHCID 66053N,N-DimethylethylenediamineHCID 6182524-Iodo-1-tritylimidazoleHCID 58305285(1S,2R)-2-(4-chlorophenyl)spiro[cyclopropane-1,3'-indolin]-2'-one

Produkt 1

HCID 58305304(1R,2S)-2-(4-chlorophenyl)-1'-(1-trityl-1 H-imidazol-4-yl)spiro[cyclopropane-1,3'-indolin]-2'-one

Reagenzien, Katalysatoren, Lösungsmittel

2
HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)KatalysatorHCID 6342AcetonitrileLösungsmittel

Reaktionsbedingungen

Temperatur
40 °C

Versuchsvorschrift

4-iodo-1-trityl-1H-imidazole (210 mg, 0.48 mmol) was added to a suspension of (1R,2S) and (1S,2R)-2-(4-chlorophenyl)spiro[cyclopropane-1,3′-indolin]-2′-one (107 mg, 0.4 mmol) in acetonitrile (2 mL) under a nitrogen atmosphere. A steady stream of nitrogen was bubbled through the suspension as it was heated to 40° C. over 15 minutes. Potassium carbonate (110 mg, 0.8 mmol), copper (I) iodide (12 mg, 15 mol %), and N,N-dimethylethylenediamine (0.12 mmol, 30 mol %) were added and the reaction mixture was heated to 80° C. for 21 hours under nitrogen atmosphere. The mixture was cooled to room temperature, filtrated, and concentrated to give the title product. The residue was purified by flash column chromatography (gradient elution, 5-10% ethyl acetate in petroleum ether) to give racemic trans-2-(4-chlorophenyl)-1′-(1H-imidazol-4-trityl) spiro[cyclopropane-1,3′-indolin]-2′-one (157 mg, 68%). LC/MS m/e calcd. for C38H28ClN3O: 577, observed (M+H)+: 578.3.

Aufarbeitung

  1. customA steady stream of nitrogen was bubbled through the suspension as it
  2. temperaturethe reaction mixture was heated to 80° C. for 21 hours under nitrogen atmosphere
  3. temperatureThe mixture was cooled to room temperature
  4. filtrationfiltrated
  5. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-5f60c6cb85d84004919d393f41825ea0
Quelldatensatz
uspto-grants-2013_01
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08354443B2

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