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Binap, (A+-)- → 1,1-Dimethylethyl 4-(6-chloro-4-fluoro-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)-1-piperidinecarboxylate

HRID 2061472
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2061472
Br[C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[C:4]([F:9])[C:3]=1[NH:10][C:11]([NH:13][CH:14]1[CH2:19][CH2:18][N:17]([C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])[CH2:16][CH2:15]1)=[O:12].C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].O1CCOCC1>[Cl:8][C:6]1[CH:5]=[C:4]([F:9])[C:3]2[NH:10][C:11](=[O:12])[N:13]([CH:14]3[CH2:19][CH2:18][N:17]([C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])[CH2:16][CH2:15]3)[C:2]=2[CH:7]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 2

HCID 634876Binap, (A+-)-HCID 596832771,1-Dimethylethyl 4-({[(2-bromo-4-chloro-6-fluorophenyl)amino]-carbonyl}amino)-1-piperidinecarboxylate

Produkt 1

HCID 596832761,1-Dimethylethyl 4-(6-chloro-4-fluoro-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)-1-piperidinecarboxylate

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 9811564Bis(dibenzylideneacetone)palladiumKatalysator
HCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

Under an argon atmosphere, 1,1-dimethylethyl 4-({[(2-bromo-4-chloro-6fluorophenyl)amino]carbonyl}amino)-1-piperidinecarboxylate (D7) (1.09 mmol, 0.493 g), 1,4-dioxane (4.4 ml), Pd2 dba3 (0.05 eq., 0.054 mmol, 50 mg), BINAP (0.055 eq., 0.059 mmol, 37 mg), NatBuO (1.5 eq., 1.63 mmol, 157 mg) were mixed together and heated to 80° C. under argon for 4 days. The reaction mixture was cooled to room temperature, quenched with water and the aqueous solution obtained was extracted with ethyl acetate. The solvent was evaporated and the crude was purified by MDAP. Fractions were collected and the solvent evaporated to yield the title compound, 15 mg, 3%, M+−H=368.

Aufarbeitung

  1. temperatureThe reaction mixture was cooled to room temperature
  2. customquenched with water
  3. customthe aqueous solution obtained
  4. extractionwas extracted with ethyl acetate
  5. customThe solvent was evaporated
  6. customthe crude was purified by MDAP
  7. customFractions were collected
  8. customthe solvent evaporated

Quellen und Nachweise

ORD-Eintrag
ord-01cd19f9c8c44a73a63aea8453ad8e83
Quelldatensatz
uspto-grants-2012_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08283364B2

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