Chlorotriethylsilane → HCID 86602612, Verbindung

HRID 1987544Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1987544
[C:1]([O:4][CH:5]1[C:6]([OH:39])([CH3:38])[CH2:7][CH2:8][CH:9]([OH:37])[CH2:10][C:11]([O:13][CH:14](/[C:19](/[CH3:36])=[CH:20]/[CH:21]=[CH:22]/[C:23]([OH:35])([CH3:34])[CH2:24][CH:25]2[O:33][CH:26]2[CH:27]([CH3:32])[CH:28]([OH:31])[CH2:29][CH3:30])[CH:15]([CH3:18])[CH:16]=[CH:17]1)=[O:12])(=[O:3])[CH3:2].Cl[Si:41]([CH2:46][CH3:47])([CH2:44][CH3:45])[CH2:42][CH3:43]>ClCCl.C(OCC)(=O)C>[C:1]([O:4][CH:5]1[C:6]([OH:39])([CH3:38])[CH2:7][CH2:8][CH:9]([O:37][Si:41]([CH2:46][CH3:47])([CH2:44][CH3:45])[CH2:42][CH3:43])[CH2:10][C:11]([O:13][CH:14](/[C:19](/[CH3:36])=[CH:20]/[CH:21]=[CH:22]/[C:23]([CH3:34])([O:35][Si:41]([CH2:46][CH3:47])([CH2:44][CH3:45])[CH2:42][CH3:43])[CH2:24][CH:25]2[O:33][CH:26]2[CH:27]([CH3:32])[CH:28]([O:31][Si:41]([CH2:46][CH3:47])([CH2:44][CH3:45])[CH2:42][CH3:43])[CH2:29][CH3:30])[CH:15]([CH3:18])[CH:16]=[CH:17]1)=[O:12])(=[O:3])[CH3:2]

Komponenten

5

Edukt 2

HCID 13819ChlorotriethylsilaneHCID 10007797Pladienolide D

Produkt 1

HCID 86602612HCID 86602612, VerbindungAusbeute 98,6 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6344DichloromethaneLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

To a solution of (8E,12E,14E)-7-acetoxy-6,3,16,21-tetrahydroxy-6,10,12,16,20-pentamethyl-18,19-epoxytricosa-8,12,14-trien-11-olide (100 mg, 0.18 mmol) in dichloromethane (6 mL) were added N,N-dimethylaminopyridine (221 mg, 1.8 mmol) and chlorotriethylsilane (272 mg, 1.8 mmol) at room temperature, and the reaction mixture was stirred at the same temperature for 18 hours. The reaction mixture was diluted with ethyl acetate and washed with saturated aqueous solution of ammonium chloride and brine. The organic layer was dried over anhydrous magnesium sulfate, filtrated and concentrated. The resulting residue was purified by silica gel column chromatography (Kanto silica gel 60N, 40-100 μm; ethyl acetate:hexane=20:80) to give the title compound (159 mg, 98%) as a colorless oil.

Aufarbeitung

  1. washwashed with saturated aqueous solution of ammonium chloride and brine
  2. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  3. filtrationfiltrated
  4. concentrationconcentrated
  5. customThe resulting residue was purified by silica gel column chromatography (Kanto silica gel 60N, 40-100 μm; ethyl acetate:hexane=20:80)

Quellen und Nachweise

ORD-Eintrag
ord-a642dd56ef514d6092979bd328fe2542
Quelldatensatz
uspto-grants-2009_06
Patentnummer
US07550503B2

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