Benzaldehyde → Methyl 3-Hydroxy-2-methylene-3-phenylpropionate

HRID 378581

Reaktionsgleichung

Reaktionsgleichung von HRID 378581
[CH:1](=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:9]([O:13][CH3:14])(=[O:12])[CH:10]=[CH2:11].N12CCN(CC1)CC2.Cl>C(OCC)(=O)C.O>[CH3:14][O:13][C:9](=[O:12])[C:10](=[CH2:11])[CH:1]([OH:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Komponenten

7

Edukt 4

HCID 240BenzaldehydeHCID 313Hydrochloric AcidHCID 7294Methyl AcrylateHCID 9237Dabco

Produkt 1

HCID 9942369Methyl 3-Hydroxy-2-methylene-3-phenylpropionate

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

A mixture of benzaldehyde (63.67 g; 600 mmol), methyl acrylate (60 ml; 667 mmol) and 1,4-diazabicyclo [2.2.2] octane (13.46 g; 120 mmol) is stirred at ambient temperature for 119 hours. To the reaction solution is added water (60 ml), 37% hydrochloric acid (60 ml) and ethyl acetate (120 ml), and then, the organic phase is extracted. The resulting organic phase is washed twice with saturated saline (60 ml), dried over anhydrous sodium sulfate and filtered, then concentrated under reduced pressure, to give a crude product of the title compound at a yield of 108.8 g.

Aufarbeitung

  1. extractionthe organic phase is extracted
  2. washThe resulting organic phase is washed twice with saturated saline (60 ml)
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-3cb3d5c663e44fe8a5662d593968671b
Quelldatensatz
uspto-grants-2000_02
Patentnummer
US06031121

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