Binap, (A+-)- → 4-Chloro-6-(5-chloro-2-methyl-benzylamino)-2H-phthalazin-1-one

HRID 1803536

Reaktionsgleichung

Reaktionsgleichung von HRID 1803536
Br[C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[C:8](=[O:12])[NH:7][N:6]=[C:5]2[Cl:13].[Cl:14][C:15]1[CH:16]=[CH:17][C:18]([CH3:23])=[C:19]([CH:22]=1)[CH2:20][NH2:21].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.CC([O-])(C)C.[Na+]>CC(N(C)C)=O.CCOC(C)=O.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]>[Cl:13][C:5]1[C:4]2[C:9](=[CH:10][CH:11]=[C:2]([NH:21][CH2:20][C:19]3[CH:22]=[C:15]([Cl:14])[CH:16]=[CH:17][C:18]=3[CH3:23])[CH:3]=2)[C:8](=[O:12])[NH:7][N:6]=1

Komponenten

8

Edukt 4

HCID 634876Binap, (A+-)-HCID 27576735-Chloro-2-methylbenzylamineHCID 23676156Sodium t-butoxideHCID 533084876-Bromo-4-chlorophthalazin-1(2H)-one

Produkt 1

HCID 249461624-Chloro-6-(5-chloro-2-methyl-benzylamino)-2H-phthalazin-1-one

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 9811564Bis(dibenzylideneacetone)palladiumKatalysatorHCID 8857Ethyl AcetateLösungsmittelHCID 31374DimethylacetamideLösungsmittel

Versuchsvorschrift

A mixture 6-bromo-4-chloro-2H-phthalazin-1-one (150 mg, 0.58 mmol), 5-chloro-2-methyl-benzylamine (100 mg, 0.64 mmol), Pd2(dba)3 (53 mg, 0.058 mmol), rac-BINAP (132 mg, 0.17 mmol) and NaOt-Bu (140 mg, 1.45 mmol) in DMA (6 mL) was heated at 80° C. for 1 h. The mixture was allowed to cool, diluted with EtOAc (25 mL) and washed with water (25 mL). The organic layer was dried over anhydrous sodium sulfate and concentrated. Chromatography on silica (EtOAc/hexanes) yielded the title compound. 4-Chloro-6-(5-chloro-2-methyl-benzylamino)-2H-phthalazin-1-one: 20 mg (10.3%): m/z (M+H)=334. 1H-NMR (DMSO-d6) δ: 12.63 (s, 1H), 8.21 (d, 1H), 7.78 (m, 1H), 7.56 (m, 1H), 7.50 (m, 2H), 7.42 (dd, 1H), 7.10 (s, 1H), 4.66 (d, 2H), 2.60 (s, 3H).

Aufarbeitung

  1. temperatureto cool
  2. washwashed with water (25 mL)
  3. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  4. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-86a677dad01344c6b1438d75b3de2f57
Quelldatensatz
uspto-grants-2013_01
Patentnummer
US08349836B2

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