Pyridine → 1-(Mesyloxymethyl)cyclohexanecarboxaldehyde

HRID 2229507

Reaktionsgleichung

Reaktionsgleichung von HRID 2229507
[OH:1][CH2:2][C:3]1([CH:9]=[O:10])[CH2:8][CH2:7][CH2:6][CH2:5][CH2:4]1.[CH3:11][S:12](Cl)(=[O:14])=[O:13].N1C=CC=CC=1>C(Cl)Cl>[S:12]([O:10][CH2:9][C:3]1([CH:2]=[O:1])[CH2:8][CH2:7][CH2:6][CH2:5][CH2:4]1)([CH3:11])(=[O:14])=[O:13]

Komponenten

5

Edukt 3

HCID 1049PyridineHCID 31297Methanesulfonyl chlorideHCID 131063971-(Hydroxymethyl)-cyclohexanecarboxaldehyde

Produkt 1

HCID 223252611-(Mesyloxymethyl)cyclohexanecarboxaldehydeAusbeute 77,8 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

To a cold (0° C.) mixture of alcohol 54 (75 g, 0.54 mole) and 65.29 g (0.57 mole) of methanesulfonyl chloride in 80 ml of methylene chloride was added a solution of pyridine (47.96 g, 0.57 mole) in 40 ml of methylene chloride. The reaction mixture was stirred at room temperature for 18 h then quenched with water, acidified with conc. HCl and extracted with methylene chloride. The organic layer was washed with water, brine, and dried over sodium sulfate and concentrated under vacuum to give 91.63 g (77.8%) of thick oil. Proton NMR and mass spectra were consistent with the product.

Aufarbeitung

  1. customthen quenched with water
  2. extractionextracted with methylene chloride
  3. washThe organic layer was washed with water, brine
  4. dry with materialdried over sodium sulfate
  5. concentrationconcentrated under vacuum

Quellen und Nachweise

ORD-Eintrag
ord-390c33638e9a49ee97f930397ddfdeae
Quelldatensatz
uspto-grants-2002_07
Patentnummer
US06420417B1

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