Sodium Carbonate → 2',5',6-Trichloro-4-methoxy-[1,1'-biphenyl]-3-amine

HRID 588814

Reaktionsgleichung

Reaktionsgleichung von HRID 588814
[Cl:1][C:2]1[C:7](I)=[CH:6][C:5]([NH2:9])=[C:4]([O:10][CH3:11])[CH:3]=1.[Cl:12][C:13]1[CH:18]=[CH:17][C:16]([Cl:19])=[CH:15][C:14]=1B(O)O.C([O-])([O-])=O.[Na+].[Na+]>O1CCOCC1.O.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>[Cl:12][C:13]1[CH:18]=[CH:17][C:16]([Cl:19])=[CH:15][C:14]=1[C:7]1[C:2]([Cl:1])=[CH:3][C:4]([O:10][CH3:11])=[C:5]([NH2:9])[CH:6]=1

Komponenten

7

Edukt 3

HCID 10340Sodium CarbonateHCID 27733712,5-Dichlorobenzeneboronic acidHCID 917583774-Chloro-5-iodo-2-methoxyaniline

Produkt 1

HCID 904558872',5',6-Trichloro-4-methoxy-[1,1'-biphenyl]-3-amineAusbeute 75,8 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 962WaterLösungsmittelHCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

A mixture of 4-chloro-5-iodo-2-methoxybenzenamine (4.1 g, 14.5 mmol), 2,5-dichlorophenylboronic acid (3.3 g, 17.4 mmol), Pd(PPh3)4 (500 mg, 1.45 mmol) and Na2CO3 (4.7 g, 43.5 mmol) in 1,4-dioxane (150 mL) and water (15 mL) was stirred at 80° C. under argon for 16 h. The mixture was allowed to cool to room temperature, and then partitioned between ethyl acetate and water. The organic layer was washed with brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel (petroleum ether/ethyl acetate=20:1) to afford the desired product (3.3 g, 75.8% yield) as an off-white solid.

Aufarbeitung

  1. temperatureto cool to room temperature
  2. custompartitioned between ethyl acetate and water
  3. washThe organic layer was washed with brine
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by flash column chromatography on silica gel (petroleum ether/ethyl acetate=20:1)

Quellen und Nachweise

ORD-Eintrag
ord-17ba0b5f9ac646d1aa09009a88c295b6
Quelldatensatz
uspto-grants-2016_01
Patentnummer
US09227978B2

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