Allyl bromide → Methyl 2-(allyloxy)-4-methoxybenzoate

HRID 456804

Reaktionsgleichung

Reaktionsgleichung von HRID 456804
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([OH:13])[C:6](=[CH:11][CH:12]=1)[C:7]([O:9][CH3:10])=[O:8].C([O-])([O-])=O.[Cs+].[Cs+].[CH2:20](Br)[CH:21]=[CH2:22]>CCOC(C)=O>[CH2:22]([O:13][C:5]1[CH:4]=[C:3]([O:2][CH3:1])[CH:12]=[CH:11][C:6]=1[C:7]([O:9][CH3:10])=[O:8])[CH:21]=[CH2:20]

Komponenten

5

Edukt 3

HCID 7841Allyl bromideHCID 10796Cesium carbonateHCID 79523Methyl 4-methoxysalicylate

Produkt 1

HCID 10242646Methyl 2-(allyloxy)-4-methoxybenzoate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

To a solution of methyl 4-methoxysalicylate (2.0 g, 11 mmol) in DMP (20 mL) at room temperature was added Cs2CO3 (1.3 eq, 4.7 g) and allyl bromide (1.3 eq, 1.23 mL). After 2 hr, reaction mixture was diluted with EtOAc and washed with water (3×), brine (1×). The organic layer was dried over Na2SO4 and concentrated to provide the product as a pale yellow oil. Product was used without further purification.

Aufarbeitung

  1. customreaction mixture
  2. washwashed with water (3×), brine (1×)
  3. dry with materialThe organic layer was dried over Na2SO4
  4. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-78a6b749accd43fcb538a702fbbb6bdf
Quelldatensatz
uspto-grants-2007_03
Patentnummer
US07186746B2

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