Dichloromethane → HCID 21075802, compound

HRID 1373891Notes

Reaction equation

HRID 1373891 reaction equation
[CH2:1]([NH:8][N:9]1[C:21]2[C:20]3[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=3[N+:14]([O-])=[CH:13][C:12]=2[N:11]=[C:10]1[CH2:23][CH2:24][CH2:25][CH3:26])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[NH4+:27].[OH-].C1(C)C=CC(S(Cl)(=O)=O)=CC=1.C(Cl)Cl>ClCCCl>[CH2:1]([NH:8][N:9]1[C:21]2[C:20]3[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=3[N:14]=[C:13]([NH2:27])[C:12]=2[N:11]=[C:10]1[CH2:23][CH2:24][CH2:25][CH3:26])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 6344DichloromethaneHCID 73974-Toluenesulfonyl chlorideHCID 14923Ammonium HydroxideHCID 21075803HCID 21075803, compound

Product 1

HCID 21075802HCID 21075802, compound

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Conditions

Temperature
70 °C

Procedure

A solution of N-benzyl(2-butyl-5-oxido-1H-imidazo[4,5-c]quinolin-1-yl)amine (393 mg, 1.14 mmol) in 20 mL of 1,2-dichloroethane was placed in a pressure vessel and heated to 70° C. The rapidly stirred solution was then treated with 5 mL of concentrated NH4OH solution and p-toluenesulfonyl chloride (239 mg, 1.25 mmol), the reaction vessel was capped, and heating was continued for 2 h. The reaction mixture was then cooled to ambient temperature and treated with 50 mL of CH2Cl2. The reaction mixture was washed with H2O, 1% Na2CO3 solution (3×), H2O and brine. The organic portion was dried over Na2SO4, filtered and concentrated. Chromatography (SiO2, 5% MeOH/CHCl3) followed by crystallization from propyl acetate/hexanes gave N-benzyl-2-butyl-1H-imidazo[4,5-c]quinoline-1,4-diamine (237 mg) as light-yellow crystals. mp 159.3–160.5° C. 1H NMR (300 MHz, DMSO-d6) δ 8.31 (d, J=8.2 Hz, 1H), 7.83 (d, J=8.4 Hz, 1H), 7.54 (m, 1H), 7.42–7.31 (m, 6H), 5.44 (s, 2H), 5.26 (t, J=5.6 Hz, 1H), 4.37 (d, J=5.6 Hz, 2H), 2.71 (t, J=8.4 Hz, 2H), 1.74 (m, 2H), 1.42 (m, 2H), 0.95 (t, J=7.3 Hz, 3H); MS m/z 346 (M+H)+; Anal. Calcd for C21H23N5: C, 73.02; H, 6.71; N, 20.27. Found: C, 72.75; H, 6.55; N, 20.46.

Workup

  1. customthe reaction vessel was capped
  2. temperatureheating
  3. temperatureThe reaction mixture was then cooled to ambient temperature
  4. washThe reaction mixture was washed with H2O, 1% Na2CO3 solution (3×), H2O and brine
  5. dry with materialThe organic portion was dried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customChromatography (SiO2, 5% MeOH/CHCl3) followed by crystallization from propyl acetate/hexanes

Sources & evidence

ORD record
ord-16c22a0f82ec4a43a9a734aba1a9e161
Source dataset
uspto-grants-2007_01
Patent number
US07163947B2

Reaction notes

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