Diethyl Ether → (+/-)-cis-6-(Cyanomethyl)-1,3-dioxane-4-acetic acid

HRID 1587168

Reaktionsgleichung

Reaktionsgleichung von HRID 1587168
CC(C)=[O:3].OS(O)(=O)=O.O=[Cr](=O)=O.[O:14]=[CH:15][CH2:16][C@H:17]1[O:22][CH2:21][O:20][C@@H:19]([CH2:23][C:24]#[N:25])[CH2:18]1.C(OCC)C>CC(C)=O>[C:24]([CH2:23][C@H:19]1[O:20][CH2:21][O:22][C@@H:17]([CH2:16][C:15]([OH:3])=[O:14])[CH2:18]1)#[N:25]

Komponenten

5

Edukt 3

HCID 3283Diethyl EtherHCID 86744693(+/-)-cis-6-(2-Oxoethyl)-1,3-dioxane-4-acetonitrileHCID 131709961Jones' reagent

Produkt 1

HCID 15045148(+/-)-cis-6-(Cyanomethyl)-1,3-dioxane-4-acetic acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 180AcetoneLösungsmittel

Versuchsvorschrift

Jones reagent (chromium trioxide-sulfuric acid-water), 3.8 mL (97.6 mmol), is added dropwise to a 0° C. solution of (±)-cis-6-(2-oxoethyl)-1,3-dioxane4-acetonitrile, 1.29 g (7.6 mmol), dissolved in 50 mL of acetone until the orange color is not discharged. After stirring a further 15 minutes, the mixture is poured into 300 mL of diethyl ether and washed with brine until the aqueous washes are colorless. The diethyl ether layer is dried (magnesium sulfate), filtered, and concentrated to provide 1.2 g of (±)-cis-6-(cyanomethyl)-1,3-dioxane-4-acetic acid as a colorless solid.

Aufarbeitung

  1. washwashed with brine until the aqueous washes
  2. dry with materialThe diethyl ether layer is dried (magnesium sulfate)
  3. filtrationfiltered
  4. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-ea5b1118c363417c9c83e80a01385a49
Quelldatensatz
uspto-grants-1993_06
Patentnummer
US05216174

Verknüpfte Notizen

Wird geladen…