Water → HCID 22123630, Verbindung

HRID 1859303Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1859303
Cl[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][O:7][C:8]1[CH:13]=[CH:12][C:11]([C:14]2([OH:38])[C:19]3[CH:20]=[CH:21][C:22]([O:24][CH2:25][O:26][CH3:27])=[CH:23][C:18]=3[O:17][CH2:16][CH:15]2[C:28]2[CH:33]=[CH:32][C:31]([O:34][CH2:35][O:36][CH3:37])=[CH:30][CH:29]=2)=[CH:10][CH:9]=1.[I-:39].[Na+].O>C(C(C)=O)C>[OH:38][C:14]1([C:11]2[CH:12]=[CH:13][C:8]([O:7][CH2:6][CH2:5][CH2:4][CH2:3][CH2:2][I:39])=[CH:9][CH:10]=2)[C:19]2[CH:20]=[CH:21][C:22]([O:24][CH2:25][O:26][CH3:27])=[CH:23][C:18]=2[O:17][CH2:16][CH:15]1[C:28]1[CH:33]=[CH:32][C:31]([O:34][CH2:35][O:36][CH3:37])=[CH:30][CH:29]=1

Komponenten

5

Edukt 3

HCID 962WaterHCID 5238Sodium IodideHCID 22123596HCID 22123596, Verbindung

Produkt 1

HCID 22123630HCID 22123630, VerbindungAusbeute 75 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6569Methyl Ethyl KetoneLösungsmittel

Versuchsvorschrift

4-[4-(5-Chloropentyloxy)phenyl]-4-hydroxy-7-methoxymethyloxy-3-[4-(methoxymethyloxy)phenyl]-2,3-dihydro-4H-benzopyran (167 mg, 0.3 mmol) and sodium iodide (139 mg, 0.9 mmol) were dissolved in methyl ethyl ketone (5 ml) and then refluxed for 12 hours. The reaction solution was cooled to room temperature and, after adding water, extracted with ethyl acetate. The organic layer was dried over anhydrous magnesium sulfate, filtered and then concentrated under reduced pressure to remove the organic solvent. The concentrate was subjected to column chromatography (n-hexane:ethyl acetate=4:1) to obtain 142 mg (yield: 75%) of the title compound as a colorless oil.

Aufarbeitung

  1. temperaturerefluxed for 12 hours
  2. extractionextracted with ethyl acetate
  3. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customto remove the organic solvent

Quellen und Nachweise

ORD-Eintrag
ord-6dd27313323f43639eeb222241da25fa
Quelldatensatz
uspto-grants-2000_11
Patentnummer
US06153768

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