Triethylamine → HCID 54003857, Verbindung
Reaktionsgleichung
[OH:1][C@@H:2]([CH3:20])[CH2:3][CH2:4][CH2:5][CH2:6][N:7]1[C:16](=[O:17])[C:15]2[N:14]([CH3:18])[CH:13]=[N:12][C:11]=2[N:10]([CH3:19])[C:8]1=[O:9].C(N(CC)CC)C.[CH3:28][S:29](Cl)(=[O:31])=[O:30]>ClCCl>[CH3:28][S:29]([O:1][C@@H:2]([CH3:20])[CH2:3][CH2:4][CH2:5][CH2:6][N:7]1[C:16](=[O:17])[C:15]2[N:14]([CH3:18])[CH:13]=[N:12][C:11]=2[N:10]([CH3:19])[C:8]1=[O:9])(=[O:31])=[O:30]Komponenten
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 0 °C
Versuchsvorschrift
A solution of (S)-1-(5-hydroxyhexyl)-3,7-dimethylxanthine (Klein, J. P.; Leigh, A, J.; Michnick, J.; Kumar, A. M.; Underiner, G. E. Asymmetric Synthesis of Chiral Secondary Alcohols, U.S. Pat. No. 5,629,423 (May 13, 1997)) (14 g, 50 mmol) and triethylamine (14 ml) was cooled to 0° C. in dichloromethane (200 ml) and methanesulfonyl chloride (5.80 ml. 75 mmol) was added slowly at 0° C. After stirring for an additional 4 hours at 0° C., the reaction was quenched by the addition of water and extracted with dichloromethane (4x 150 ml). The combined extracts were washed with saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate and concentrated under reduced pressure to provide (S)-1-(5-methanesulfonyloxyhexyl)-3,7-dimethylxanthine (19.6 g).
Aufarbeitung
- customthe reaction was quenched by the addition of water
- extractionextracted with dichloromethane (4x 150 ml)
- washThe combined extracts were washed with saturated aqueous sodium chloride solution
- dry with materialdried over anhydrous magnesium sulfate
- concentrationconcentrated under reduced pressure
Quellen und Nachweise
- ORD-Eintrag
- ord-f3e960ce4c68485d8d2a57d54162f98e
- Quelldatensatz
- uspto-grants-2005_04
- Patentnummer
- US06878715B1
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