Binap, (A+-)- → HCID 24947034, compound

HRID 1803578Notes

Reaction equation

HRID 1803578 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].[N:14]1([CH2:20][CH2:21][N:22]2[CH2:27][CH2:26][NH:25][CH2:24][CH2:23]2)[CH2:19][CH2:18][O:17][CH2:16][CH2:15]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:25]3[CH2:24][CH2:23][N:22]([CH2:21][CH2:20][N:14]4[CH2:15][CH2:16][O:17][CH2:18][CH2:19]4)[CH2:27][CH2:26]3)[CH:3]=2)[C:8](=[O:12])[NH:7][N:6]=1

Participants

8

Reactant 4

HCID 634876Binap, (A+-)-HCID 27346404-(2-Piperazin-1-yl-ethyl)-morpholineHCID 23676156Sodium t-butoxideHCID 533084876-Bromo-4-chlorophthalazin-1(2H)-one

Product 1

HCID 24947034HCID 24947034, compoundYield 19.7%

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-[2-(morpholin-4-yl)ethyl]piperazine (127 mg, 0.636 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 2 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-(2-morpholin-4-yl-ethyl)-piperazin-1-yl]-2H-phthalazin-1-one hydroformate (43 mg) as an orange solid, 1H (400 MHz, d6-DMSO) δ: 2.39 (m, 4H), 2.45 (m, 4H), 2.56 (m, 4H), 3.41 (m, 4H), 3.55 (t, 4H), 7.08 (d, 1H), 7.54 (dd, 1H), 8.03 (d, 1H), 8.15 (s, 1H), 12.49 (s, 1H) ppm; m/z (M+1) 378.05.

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-ca0015e153944a08a894c6ccbe9a137e
Source dataset
uspto-grants-2013_01
Patent number
US08349836B2

Reaction notes

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