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1,2-Dimethoxyethane → HCID 118468239, Verbindung

HRID 629459
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 629459
[OH:1][C:2]1[C:11]([CH3:12])=[C:10]([CH3:13])[C:9](B2OC(C)(C)C(C)(C)O2)=[CH:8][C:3]=1[C:4]([O:6][CH3:7])=[O:5].COCCOC.Cl[CH2:30][C:31]1[CH:32]=[CH:33][C:34]([CH3:37])=[N:35][CH:36]=1.C(=O)([O-])[O-].[Na+].[Na+]>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C(OCC)(=O)C.O>[OH:1][C:2]1[C:11]([CH3:12])=[C:10]([CH3:13])[C:9]([CH2:30][C:31]2[CH:36]=[N:35][C:34]([CH3:37])=[CH:33][CH:32]=2)=[CH:8][C:3]=1[C:4]([O:6][CH3:7])=[O:5]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

8

Edukt 4

HCID 80711,2-DimethoxyethaneHCID 10340Sodium CarbonateHCID 122143385-(Chloromethyl)-2-methylpyridineHCID 131735371Methyl 2-hydroxy-3,4-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate

Produkt 1

HCID 118468239HCID 118468239, VerbindungAusbeute 64,4 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 962WaterLösungsmittel2×HCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

To a solution of methyl 2-hydroxy-3,4-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (0.80 g) in a mixed solvent of DME (12.0 mL)-water (4.00 mL) were added 5-(chloromethyl)-2-methylpyridine (0.41 g), tetrakis(triphenylphosphine)palladium(0) (0.15 g) and sodium carbonate (0.55 g), and the mixture was stirred overnight at 80° C. under argon atmosphere. The reaction mixture was allowed to be cooled to room temperature, water and ethyl acetate were added thereto, and the mixture was partitioned. The organic layer was washed with water and saturated brine, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (0.48 g).

Aufarbeitung

  1. temperatureto be cooled to room temperature
  2. customthe mixture was partitioned
  3. washThe organic layer was washed with water and saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was evaporated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane)

Quellen und Nachweise

ORD-Eintrag
ord-d1eb4380e8b84f668efa77fa2aa511dd
Quelldatensatz
uspto-grants-2016_04
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09315458B2

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