1-Methylpiperazine → N-(1-(5-chloro-2,3-dimethoxyphenyl)ethyl)-5-(4-methylpiperazin-1-yl)-2-(methylsulfonyl)benzenamine

HRID 1910631Notes

Reaction equation

HRID 1910631 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([O:24][CH3:25])[C:5]([O:22][CH3:23])=[C:6]([CH:8]([NH:10][C:11]2[CH:16]=[C:15](F)[CH:14]=[CH:13][C:12]=2[S:18]([CH3:21])(=[O:20])=[O:19])[CH3:9])[CH:7]=1.[CH3:26][N:27]1[CH2:32][CH2:31][NH:30][CH2:29][CH2:28]1.C(N(CC)C(C)C)(C)C>C(#N)C>[Cl:1][C:2]1[CH:3]=[C:4]([O:24][CH3:25])[C:5]([O:22][CH3:23])=[C:6]([CH:8]([NH:10][C:11]2[CH:16]=[C:15]([N:30]3[CH2:31][CH2:32][N:27]([CH3:26])[CH2:28][CH2:29]3)[CH:14]=[CH:13][C:12]=2[S:18]([CH3:21])(=[O:20])=[O:19])[CH3:9])[CH:7]=1

Participants

5

Reactant 3

HCID 531671-MethylpiperazineHCID 81531DiisopropylethylamineHCID 44240863N-(1-(5-Chloro-2,3-dimethoxyphenyl)ethyl)-5-fluoro-2-(methylsulfonyl)benzenamine

Product 1

HCID 58707275N-(1-(5-chloro-2,3-dimethoxyphenyl)ethyl)-5-(4-methylpiperazin-1-yl)-2-(methylsulfonyl)benzenamineYield 7.5%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

N-(1-(5-Chloro-2,3-dimethoxyphenyl)ethyl)-5-fluoro-2-(methylsulfonyl)benzenamine (0.50 g, 1.29 mmol), 1-methylpiperazine (0.60 g, 6.40 mmol), N,N-diisopropylethylamine (0.66 g, 5.15 mmol) were stirred at 110° C. in dry acetonitrile (3 mL) for 16 h. The solvent was evaporated and the residue was dissolved in dichloromethane and washed with water. The dichloromethane was evaporated and the crude compound was purified by silica chromatography using 10% methanol in dichloromethane to afford the title compound (45.1 mg, 7.5% yield). 1H NMR (400 MHz, CDCl3): δ 7.54 (d, 1H), 6.87 (d, 1H), 6.76 (d, 1H), 6.52 (d, 1H), 6.22 (dd, 1H), 5.91 (d, 1H), 4.85 (m, 1H), 3.89 (s, 3H), 3.85 (s, 3H), 3.19 (m, 4H), 3.04 (s, 3H), 2.43 (m, 4H), 1.54 (d, 3H); MS (ESI) m/z: 468.0 (M+).

Workup

  1. customThe solvent was evaporated
  2. dissolutionthe residue was dissolved in dichloromethane
  3. washwashed with water
  4. customThe dichloromethane was evaporated
  5. customthe crude compound was purified by silica chromatography

Sources & evidence

ORD record
ord-0cca4539c78144dfbe422858a5eda90d
Source dataset
uspto-grants-2013_12
Patent number
US08604021B2

Reaction notes

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