Hydrochloric Acid → 4,4-Dimethyl-2-(4'hydroxymethylbiphenyl-2-yl)oxazoline

HRID 742788

Reaktionsgleichung

Reaktionsgleichung von HRID 742788
[CH3:1][C:2]1([CH3:27])[CH2:6][O:5][C:4]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][C:8]=2[C:13]2[CH:18]=[CH:17][C:16]([CH2:19][O:20]C3CCCCO3)=[CH:15][CH:14]=2)=[N:3]1.Cl.C(=O)([O-])O.[Na+]>CO>[CH3:1][C:2]1([CH3:27])[CH2:6][O:5][C:4]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][C:8]=2[C:13]2[CH:14]=[CH:15][C:16]([CH2:19][OH:20])=[CH:17][CH:18]=2)=[N:3]1

Komponenten

5

Edukt 3

HCID 313Hydrochloric AcidHCID 516892Sodium BicarbonateHCID 153808764,4-Dimethyl-2-(4'-tetrahydropyranyloxymethylbiphenyl-2-yl)oxazoline

Produkt 1

HCID 110658764,4-Dimethyl-2-(4'hydroxymethylbiphenyl-2-yl)oxazolineAusbeute 98 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

4.0 g (10.9 mmol) of 4,4-dimethyl-2-(4'-tetrahydropyranyloxymethylbiphenyl-2-yl)oxazoline was dissolved in methanol (50 ml), and 6N hydrochloric acid (15 ml) was added thereto, followed by stirring at room temperature for 2 hours. The reaction liquid was poured into a saturated aqueous solution of sodium hydrogencarbonate, followed by the extraction with chloroform. After washing with water and drying, vacuum concentration was conducted. The residue was purified by silica gel column chromatography (a n-hexane/ethyl acetate system) to give 3.0 g of the title compound (yield 98%).

Aufarbeitung

  1. customThe reaction liquid
  2. extractionfollowed by the extraction with chloroform
  3. washAfter washing with water
  4. customdrying
  5. concentrationvacuum concentration
  6. customThe residue was purified by silica gel column chromatography (a n-hexane/ethyl acetate system)

Quellen und Nachweise

ORD-Eintrag
ord-32bda42f9df34f9182eb7d5133b51b04
Quelldatensatz
uspto-grants-1996_09
Patentnummer
US05554757

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