Pyridine → HCID 21982267, Verbindung

HRID 10898

Reaktionsgleichung

Reaktionsgleichung von HRID 10898
[OH:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[C:4](=[O:25])[N:5]([CH2:12][CH:13]([C:19]1([CH3:24])OCC[O:20]1)[C:14]([O:16][CH2:17][CH3:18])=[O:15])[C:6]2=[O:11].N1C=CC=CC=1.[C:32](Cl)(=[O:34])[CH3:33]>ClCCl>[C:32]([O:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[C:4](=[O:25])[N:5]([CH2:12][CH:13]([C:19](=[O:20])[CH3:24])[C:14]([O:16][CH2:17][CH3:18])=[O:15])[C:6]2=[O:11])(=[O:34])[CH3:33]

Komponenten

5

Edukt 3

HCID 1049PyridineHCID 6367Acetyl chlorideHCID 21982235Ethyl 3-(4-hydroxy-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2-(2-methyl-[1,3]dioxolan-2-yl)propionate

Produkt 1

HCID 21982267HCID 21982267, VerbindungAusbeute 54,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

Ethyl 3-(4-hydroxy-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2-(2-methyl-[1,3]dioxolan-2-yl)propionate (102.4 mg, 0.34 mmol) was dissolved in dichloromethane, and pyridine (55 μl, 0.682 mmol) and acetyl chloride (49 μl, 0.68 mmol) were then slowly added dropwise to the obtained solution at 0° C. The resulting mixture was then stirred at the same temperature for 10 minutes. After the reaction was completed, the reaction mixture was washed with water and then the aqueous layer was extracted with dichloromethane. The combined organic layer was dried with anhydrous sulfate and distilled under a reduced pressure. The desired product (64 mg, 54%) was obtained by performing column chromatography (eluent: n-hexane/ethyl acetate=3/1).

Aufarbeitung

  1. washthe reaction mixture was washed with water
  2. extractionthe aqueous layer was extracted with dichloromethane
  3. dry with materialThe combined organic layer was dried with anhydrous sulfate
  4. distillationdistilled under a reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-8ab64c3ee79f4ec68259b9f3e101f5c1
Quelldatensatz
uspto-grants-2006_08
Patentnummer
US07094908B2

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