4-Toluenesulfonyl chloride → HCID 67181906, compound

HRID 1966444Notes

Reaction equation

HRID 1966444 reaction equation
[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([N:10]2[CH2:15][CH2:14][NH:13][CH2:12][CH2:11]2)=[CH:6][C:5]=1[NH:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1)([O-:3])=[O:2].[CH3:23][C:24]1[CH:29]=[CH:28][C:27]([S:30](Cl)(=[O:32])=[O:31])=[CH:26][CH:25]=1.C(N(CC)CC)C>ClCCl>[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([N:10]2[CH2:15][CH2:14][N:13]([S:30]([C:27]3[CH:28]=[CH:29][C:24]([CH3:23])=[CH:25][CH:26]=3)(=[O:32])=[O:31])[CH2:12][CH2:11]2)=[CH:6][C:5]=1[NH:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1)([O-:3])=[O:2]

Participants

5

Reactant 3

HCID 73974-Toluenesulfonyl chlorideHCID 8471TriethylamineHCID 58425618HCID 58425618, compound

Product 1

HCID 67181906HCID 67181906, compoundYield 40%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of 2-nitro-N-phenyl-5-(piperazin-1-yl)benzenamine (0.5 g, 1.7 mmol), 4-methylbenzene-1-sulfonyl chloride (0.32 g, 1.7 mmol) and triethylamine (0.60 ml, 4.2 mmol) in 20 ml dichloromethane was stirred at 0° C. for 2 hours. The mixture was washed with water (2×10 ml) and dried over anhydrous sodium sulfate before removing the solvents. N-(2-nitro-5-(4-tosylpiperazin-1-yl)phenyl)benzenamine (0.30 g, 40%) was obtained by flash column chromatograph (50% ethyl acetate in hexanes). 1H NMR (500 MHz, CDCl3) δ (ppm) 2.46 (s, 3H), 3.24 (t, J=4.5 Hz, 4H), 3.42 (t, J=4.5 Hz, 4H), 6.42 (d, J=9.6 Hz, 1H), 6.64 (s, 1H), 7.28-7.65 (m, 9H), 8.14 (d, J=9.5 Hz, 1H), 9.90 (s, 1H). 13C NMR (125 MHz, CDCl3): δ (ppm) 22.0, 45.5, 48.4, 48.5, 99.5, 99.6, 125.0, 106.8, 126.4, 128.2, 129.6, 130.3, 130.4, 132.7, 138.9, 144.8, 145.6.

Workup

  1. washThe mixture was washed with water (2×10 ml)
  2. dry with materialdried over anhydrous sodium sulfate
  3. custombefore removing the solvents

Sources & evidence

ORD record
ord-9a17690adc4b48e0b141976dabf77e78
Source dataset
uspto-grants-2013_04
Patent number
US08420640B2

Reaction notes

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