Binap, (A+-)- → HCID 24946520, compound

HRID 1667436Notes

Reaction equation

HRID 1667436 reaction equation
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.Cl.[N:16]1[CH:21]=[CH:20][CH:19]=[C:18]([C:22]2[CH:29]=[CH:28][CH:27]=[CH:26][C:23]=2[CH2:24][NH2:25])[CH:17]=1.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:25][CH2:24][C:23]3[CH:26]=[CH:27][CH:28]=[CH:29][C:22]=3[C:18]3[CH:17]=[N:16][CH:21]=[CH:20][CH:19]=3)[CH:3]=2)[C:8](=[O:12])[NH:7][N:6]=1

Participants

8

Reactant 4

HCID 634876Binap, (A+-)-HCID 185257541-[2-(Pyridin-3-yl)phenyl]methanamine--hydrogen chloride (1/2)HCID 23676156Sodium t-butoxideHCID 533084876-Bromo-4-chlorophthalazin-1(2H)-one

Product 1

HCID 24946520HCID 24946520, compound

Reagents, catalysts & solvents 3

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 8857Ethyl AcetateSolventHCID 31374DimethylacetamideSolvent

Procedure

A mixture 6-bromo-4-chloro-2H-phthalazin-1-one (150 mg, 0.58 mmol), 2-pyridin-3-yl-benzylamine dihydrochloride (165 mg, 0.64 mmol), Pd2(dba)3 (53 mg, 0.058 mmol), rac-BINAP (108 mg, 0.17 mmol) and NaOt-Bu (251 mg, 2.61 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-(2-pyridin-3-yl-benzylamino)-2H-phthalazin-1-one: 51 mg (24.2%): m/z (M+H)=363. 1H-NMR (DMSO-d6) δ: 12.32 (s, 1H), 8.65 (d, 1H), 8.58 (dd, 1H), 7.88 (m, 2H), 7.61 (m, 1H), 7.46 (m, 4H), 7.34 (m, 1H), 7.06 (dd, 1H), 6.55 (s, 1H), 4.30 (d, 2H).

Workup

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

Sources & evidence

ORD record
ord-3334dc50b42a432c85646544f04fc72a
Source dataset
uspto-grants-2011_10
Patent number
US08044041B2

Reaction notes

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