1-(1-Ethylpiperazin-4-yl)-3-bromoisoquinoline → HCID 22502713, compound

HRID 1251267Notes

Reaction equation

HRID 1251267 reaction equation
[CH2:1]([N:3]1[CH2:8][CH2:7][N:6]([C:9]2[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[CH:12]=[C:11](Br)[N:10]=2)[CH2:5][CH2:4]1)[CH3:2].[CH2:20]([Mg]Cl)[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1.CCOCC>C(OCC)C.Cl[Ni]1(Cl)[P](C2C=CC=CC=2)(C2C=CC=CC=2)CCC[P]1(C1C=CC=CC=1)C1C=CC=CC=1>[CH2:1]([N:3]1[CH2:8][CH2:7][N:6]([C:9]2[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[CH:12]=[C:11]([CH2:20][C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)[N:10]=2)[CH2:5][CH2:4]1)[CH3:2]

Participants

5

Reactant 2

HCID 225024471-(1-Ethylpiperazin-4-yl)-3-bromoisoquinolineHCID 178467830HCID 178467830, compound

Product 1

HCID 22502713HCID 22502713, compoundYield 59.5%

Reagents, catalysts & solvents 2

HCID 178418745HCID 178418745, compoundCatalystHCID 3283Diethyl EtherSolvent2×

Procedure

To a mixture solution of 1-(4-ethylpiperazin-1-yl)-3-bromoisoquinoline (0.71 g) cooled to 0° C. and [1,3-bis(diphenylphosphino)propane]dichloronickel(II) (0.05 g) in diethyl ether (20 ml) was dropwise added 1M benzylmagnesium chloride/ether solution (4.5 ml) in nitrogen atmosphere. The reaction mixture was stirred at room temperature overnight. The reaction solution was diluted with ether (30 ml), washed with water and brine, and then dried over magnesium sulfate. The solvent was removed, and the resulting residue was purified by silica gel column chromatography (ethyl acetate/acetone system), to give the title compound (0.44 g; 59.5%) as a pale yellow oil.

Workup

  1. washwashed with water and brine
  2. dry with materialdried over magnesium sulfate
  3. customThe solvent was removed
  4. customthe resulting residue was purified by silica gel column chromatography (ethyl acetate/acetone system)

Sources & evidence

ORD record
ord-21c92eb7b9924b16bcc993ecf304f125
Source dataset
uspto-grants-2002_01
Patent number
US06340759B1

Reaction notes

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