Toluene → Methyl 3,5-dicyclopropyl-4-(trifluoromethoxy)benzoate

HRID 402828

Reaktionsgleichung

Reaktionsgleichung von HRID 402828
Br[C:2]1[CH:3]=[C:4]([CH:9]=[C:10](Br)[C:11]=1[O:12][C:13]([F:16])([F:15])[F:14])[C:5]([O:7][CH3:8])=[O:6].C([O-])([O-])=O.[Cs+].[Cs+].[CH:24]1([B-](F)(F)F)[CH2:26][CH2:25]1.[K+].[C:32]1([CH3:38])C=CC=C[CH:33]=1>O.CC([O-])=O.CC([O-])=O.[Pd+2].C12(P(C34CC5CC(CC(C5)C3)C4)CCCC)CC3CC(CC(C3)C1)C2>[CH:24]1([C:2]2[CH:3]=[C:4]([CH:9]=[C:10]([CH:38]3[CH2:32][CH2:33]3)[C:11]=2[O:12][C:13]([F:16])([F:15])[F:14])[C:5]([O:7][CH3:8])=[O:6])[CH2:26][CH2:25]1

Komponenten

8

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

To methyl 3,5-dibromo-4-(trifluoromethoxy)benzoate (500 mg, 1.32 mmol), Cs2CO3 (2586 mg, 7.94 mmol), Pd(OAc)2 (11.9 mg, 0.053 mmol), potassium cyclopropyltrifluoroborate (470 mg, 3.18 mmol) and di(1-adamantyl)-n-butylphosphine (28.5 mg, 0.079 mmol) was added toluene (12 mL) and water (1.2 mL). The reaction mixture was heated to 100° C. overnight. The reaction mixture was cooled to room temperature, diluted with water, extracted with DCM and evaporated in vacuo. The residue was purified by silica gel chromatography (0-20% EtOAc/hexanes) to yield the title compound (259 mg).

Aufarbeitung

  1. temperatureThe reaction mixture was cooled to room temperature
  2. extractionextracted with DCM
  3. customevaporated in vacuo
  4. customThe residue was purified by silica gel chromatography (0-20% EtOAc/hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-7fd07df0264a410eac9a56bdedf98093
Quelldatensatz
uspto-grants-2014_06
Patentnummer
US08742110B2

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