4-Toluenesulfonyl chloride → HCID 67050947, compound
Reaction equation
C1C=C(Cl)C=C(C(OO)=O)C=1.[CH3:12][CH:13]([CH3:41])[CH2:14][N:15]1[C:27]2[C:26]3[CH:25]=[CH:24][C:23]([O:28][C:29]4[CH:34]=[CH:33][C:32]([N+:35]([O-:37])=[O:36])=[CH:31][CH:30]=4)=[CH:22][C:21]=3[N:20]=[CH:19][C:18]=2[N:17]=[C:16]1[CH2:38][CH2:39][CH3:40].[OH-].[NH4+:43].C1(C)C=CC(S(Cl)(=O)=O)=CC=1>C(Cl)(Cl)Cl.ClCCl>[CH3:12][CH:13]([CH3:41])[CH2:14][N:15]1[C:27]2[C:26]3[CH:25]=[CH:24][C:23]([O:28][C:29]4[CH:34]=[CH:33][C:32]([N+:35]([O-:37])=[O:36])=[CH:31][CH:30]=4)=[CH:22][C:21]=3[N:20]=[C:19]([NH2:43])[C:18]=2[N:17]=[C:16]1[CH2:38][CH2:39][CH3:40]Participants
Procedure
Part B of the general methods described for Examples 35-40 was followed using 2.00 g of 1-(2-methylpropyl)-2-propyl-1H-imidazo[4,5-c]quinolin-7-ol to provide 2.33 g of 1-(2-methylpropyl)-7-(4-nitrophenoxy)-2-propyl-1H-imidazo[4,5-c]quinoline as a yellow solid. Parts C and D of the general methods described for Examples 35-40 were replaced by the following procedure. mCPBA (0.853 g, 2.97 mmol) was added in one portion to a solution of 1-(2-methylpropyl)-7-(4-nitrophenoxy)-2-propyl-1H-imidazo[4,5-c]quinoline (1.00 g, 2.47 mmol) in chloroform (17 mL), and the reaction was stirred for 30 minutes Ammonium hydroxide (17 mL) was then added, followed by p-toluenesulfonyl chloride (0.710 g, 3.70 mmol). The reaction was stirred for 16 hours and then diluted with dichloromethane. The aqueous layer was extracted with dichloromethane. The combined organic solutions were washed sequentially with water and brine, dried over magnesium sulfate, filtered, and concentrated under reduced pressure to provide a brown solid. The solid was recrystallized from acetonitrile to provide 0.680 g of 1-(2-methylpropyl)-7-(4-nitrophenoxy)-2-propyl-1H-imidazo[4,5-c]quinolin-4-amine as a reddish-brown, crystalline solid, mp 209-211° C.
Workup
- additionwas then added
- extractionThe aqueous layer was extracted with dichloromethane
- washThe combined organic solutions were washed sequentially with water and brine
- dry with materialdried over magnesium sulfate
- filtrationfiltered
- concentrationconcentrated under reduced pressure
- customto provide a brown solid
- customThe solid was recrystallized from acetonitrile
Sources & evidence
- ORD record
- ord-3052750101a44885b15f86feef01ae70
- Source dataset
- uspto-grants-2012_09
- Patent number
- US08263594B2
Reaction notes
Loading…