Water → 1-(16-Heptadecenyl)-3,7-dimethylxanthine

HRID 361552Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 361552
[NH:1]1[C:12](=[O:13])[C:11]2[N:9]([CH3:10])[CH:8]=[N:7][C:6]=2[N:4]([CH3:5])[C:2]1=[O:3].[Na].[CH2:15](Cl)[CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH:30]=[CH2:31].O>CS(C)=O.O1CCCC1>[CH2:31]([N:1]1[C:12](=[O:13])[C:11]2[N:9]([CH3:10])[CH:8]=[N:7][C:6]=2[N:4]([CH3:5])[C:2]1=[O:3])[CH2:30][CH2:29][CH2:28][CH2:27][CH2:26][CH2:25][CH2:24][CH2:23][CH2:22][CH2:21][CH2:20][CH2:19][CH2:18][CH2:17][CH:16]=[CH2:15]

Komponenten

5

Edukt 3

HCID 962WaterHCID 2329590516-Heptadecenyl chlorideHCID 66980828Theobromine sodium

Produkt 1

HCID 232959361-(16-Heptadecenyl)-3,7-dimethylxanthineAusbeute 85 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 21830753dimethylsulfoxide THFLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

To a suspension of sodium theobromine (2.02 g, 10.0 mmol) in dimethylsulfoxide/tetrahydrofuran (2:1, 30 mL) was added 16-heptadecenyl chloride and the reaction stirred for 16 hours at 60° C. The mixture was poured into water (75 mL) and extracted with ethyl acetate (3×75 mL). The organic portions were combined, dried using magnesium sulfate, and the solvent evaporated to give a cream solid. Recrystallization from hot hexane yields 2.31 g (85% yield) 1-(16-Heptadecenyl)-3,7-dimethylxanthine as a white solid.

Aufarbeitung

  1. extractionextracted with ethyl acetate (3×75 mL)
  2. customdried
  3. customthe solvent evaporated
  4. customto give a cream solid
  5. customRecrystallization from hot hexane

Quellen und Nachweise

ORD-Eintrag
ord-3bbe6c5dde54493cb60844fa6ca0820e
Quelldatensatz
uspto-grants-1999_02
Patentnummer
US05866576

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