Hydrochloric Acid → 3-(2-Ethyl-5-tetradecylphenoxy)1,2-propanediol

HRID 893597Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 893597
[CH2:1]([C:3]1[CH:17]=[CH:16][C:15]([CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH3:31])=[CH:14][C:4]=1[O:5][CH2:6][CH:7]1[CH2:11][O:10]C(C)(C)[O:8]1)[CH3:2].Cl>O1CCCC1>[CH2:1]([C:3]1[CH:17]=[CH:16][C:15]([CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH3:31])=[CH:14][C:4]=1[O:5][CH2:6][CH:7]([OH:8])[CH2:11][OH:10])[CH3:2]

Komponenten

4

Edukt 2

HCID 313Hydrochloric AcidHCID 148196794-((2-Ethyl-5-tetradecylphenoxy)methyl)-2,2-dimethyl-1,3-dioxolane

Produkt 1

HCID 142562013-(2-Ethyl-5-tetradecylphenoxy)1,2-propanediol

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

A mixture of 14.2 g of 4-((2-ethyl-5-tetradecylphenoxy)methyl)-2,2-dimethyl-1,3-dioxolane, 50 ml of 5% hydrochloric acid and 100 ml of tetrahydrofuran was heated at reflux for 8 hours, then allowed to cool and the tetrahydrofuran removed under reduced pressure. Ethyl acetate was added, the mixture washed with water, dried and the solvents removed. The residue was chromatographed on silica gel, eluting impurities with hexane:ethyl acetate (16:1) and the (4:1) to elute the desired compound, giving 11 g, 55.5°-56.5° C.

Aufarbeitung

  1. temperaturewas heated
  2. temperatureat reflux for 8 hours
  3. temperatureto cool
  4. customthe tetrahydrofuran removed under reduced pressure
  5. additionEthyl acetate was added
  6. washthe mixture washed with water
  7. customdried
  8. customthe solvents removed
  9. customThe residue was chromatographed on silica gel
  10. washeluting impurities with hexane:ethyl acetate (16:1)
  11. washthe (4:1) to elute the desired compound
  12. customgiving 11 g, 55.5°-56.5° C.

Quellen und Nachweise

ORD-Eintrag
ord-e92ece6d02374b4d96bc40075060c093
Quelldatensatz
uspto-grants-1992_06
Patentnummer
US05126291

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