Water → ((1r,4r)-4-((Benzyloxy)methyl)cyclohexyl)methanol

HRID 1966071Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1966071
[H-].[Na+].[C@H:3]1([CH2:11][OH:12])[CH2:8][CH2:7][C@H:6]([CH2:9][OH:10])[CH2:5][CH2:4]1.[CH2:13](Br)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1.O>C1COCC1.CCCC[N+](CCCC)(CCCC)CCCC.[I-]>[CH2:13]([O:10][CH2:9][CH:6]1[CH2:7][CH2:8][CH:3]([CH2:11][OH:12])[CH2:4][CH2:5]1)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1

Komponenten

7

Edukt 4

HCID 962WaterHCID 7498Benzyl BromideHCID 24758Sodium hydrideHCID 178520956HCID 178520956, Verbindung

Produkt 1

HCID 22106763((1r,4r)-4-((Benzyloxy)methyl)cyclohexyl)methanolAusbeute 60 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 67553Tetrabutylammonium IodideKatalysatorHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a slurry of NaH (440 mg, 11 mmol) in THF (22 mL) is added trans-1,4-cyclohexanedimethanol (1.44 g, 10 mmol) at 0° C., and the mixture is stirred for 1 hour while warming to room temperature. Benzyl bromide (1.2 mL, 10 mmol) is added dropwise followed by TBAI (185 mg, 0.5 mmol). The reaction is heated to 60° C. for 15 hours. After cooling to room temperature, H2O is added, and the mixture is extracted with EtOAc. The combined organic layer after dried over MgSO4 is concentrated to obtain (4-benzyloxymethyl-cyclohexyl)-methanol as clear oil (1.40 g, 60%) after purification.

Aufarbeitung

  1. temperatureThe reaction is heated to 60° C. for 15 hours
  2. temperatureAfter cooling to room temperature
  3. extractionthe mixture is extracted with EtOAc
  4. dry with materialThe combined organic layer after dried over MgSO4
  5. concentrationis concentrated

Quellen und Nachweise

ORD-Eintrag
ord-c6b054a247b44ff79a6016210ed95a42
Quelldatensatz
uspto-grants-2013_04
Patentnummer
US08420641B2

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