Binap, (A+-)- → HCID 24947033, compound

HRID 1803579Notes

Reaction equation

HRID 1803579 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].[CH3:14][N:15]([CH3:25])[CH2:16][CH2:17][CH2:18][N:19]1[CH2:24][CH2:23][NH:22][CH2:21][CH2:20]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]([N:22]3[CH2:23][CH2:24][N:19]([CH2:18][CH2:17][CH2:16][N:15]([CH3:14])[CH3:25])[CH2:20][CH2:21]3)[CH:3]=2)[C:8](=[O:12])[NH:7][N:6]=1

Participants

8

Reactant 4

HCID 634876Binap, (A+-)-HCID 27362341-[3-(Dimethylamino)propyl]piperazineHCID 23676156Sodium t-butoxideHCID 533084876-Bromo-4-chlorophthalazin-1(2H)-one

Product 1

HCID 24947033HCID 24947033, compoundYield 18.8%

Reagents, catalysts & solvents 3

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

Procedure

A mixture 6-bromo-4-chloro-2H-phthalazin-1-one (150 mg, 0.578 mmol), 1-[3-(dimethylamino)propyl]piperazine (112 mg, 0.654 mmol), Pd2(dba)3 (53 mg, 0.0578 mmol), rac-BINAP (108 mg, 0.173 mmol) and NaOtBu (139 mg, 1.445 mmol) in DMA (5 mL) was heated at 85° C. for 1 h. The mixture was allowed to cool, diluted with EtOAc and washed with water. The organic layer was washed with sat.aq. NaHCO3, brine and dried (Na2SO4). Preparatory HPLC afforded 4-chloro-6-[4-(3-dimethylamino-propyl)-piperazin-1-yl]-2H-phthalazin-1-one hydroformate (38 mg) as a pale brown solid, 1H (400 MHz, d6-DMSO) δ: 1.66 (m, 2H), 2.30 (s, 6H), 2.34 (t, 2H), 2.53 (m, 6H), 3.43 (m, 4H), 7.09 (d, 1H), 7.55 (dd, 1H), 8.03 (d, 1H), 8.15 (s, 1H), 12.50 (s, 1H) ppm; m/z (M+1) 350.08.

Workup

  1. temperatureto cool
  2. washwashed with water
  3. washThe organic layer was washed with sat.aq
  4. dry with materialNaHCO3, brine and dried (Na2SO4)

Sources & evidence

ORD record
ord-470e0986b2524c4bbc047bfffc639e4c
Source dataset
uspto-grants-2013_01
Patent number
US08349836B2

Reaction notes

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