4-Toluenesulfonyl chloride → HCID 58833641, compound

HRID 540919Notes

Reaction equation

HRID 540919 reaction equation
[CH2:1]([O:3][CH2:4][C:5]1[N:6]([CH2:32][CH2:33][CH3:34])[C:7]2[C:16]3[CH:15]=[CH:14][C:13]([O:17][CH:18]4[CH2:23][CH2:22][N:21]([C:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])[CH2:20][CH2:19]4)=[CH:12][C:11]=3[N:10]=[CH:9][C:8]=2[N:31]=1)[CH3:2].ClC1C=C(C=CC=1)C(OO)=O.[OH-].[NH4+:47].C1(C)C=CC(S(Cl)(=O)=O)=CC=1>C(Cl)(Cl)Cl>[NH2:47][C:9]1[C:8]2[N:31]=[C:5]([CH2:4][O:3][CH2:1][CH3:2])[N:6]([CH2:32][CH2:33][CH3:34])[C:7]=2[C:16]2[CH:15]=[CH:14][C:13]([O:17][CH:18]3[CH2:23][CH2:22][N:21]([C:24]([O:26][C:27]([CH3:28])([CH3:30])[CH3:29])=[O:25])[CH2:20][CH2:19]3)=[CH:12][C:11]=2[N:10]=1

Participants

6

Reactant 4

HCID 73974-Toluenesulfonyl chlorideHCID 14923Ammonium HydroxideHCID 70297m-Chloroperbenzoic acidHCID 69507028HCID 69507028, compound

Product 1

HCID 58833641HCID 58833641, compound

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

To a stirring solution of tert-butyl 4-{[2-(ethoxymethyl)-1-propyl-1H-imidazo[4,5-c]quinolin-7-yl]oxy}piperidine-1-carboxylate (5.17 g, 10.5 mmol) in chloroform (100 mL) was added 3-chloroperoxybenzoic acid (3.62 g, 10.5 mmol, based on 50% purity). After 30 minutes, concentrated ammonium hydroxide (50 mL) was added and the mixture was stirred for 30 minutes. p-Toluenesulfonyl chloride (2.00 g, 10.5 mmol) was added in 3 portions and the mixture was stirred for 16 hours. The layers were separated and the organic fraction was sequentially washed with 5% aqueous sodium bicarbonate, water, and saturated aqueous sodium chloride. The organic fraction was dried over anhydrous sodium sulfate, filtered and evaporated under reduced pressure. Recrystallization from acetonitrile afforded 2.58 g of tert-butyl 4-{[4-amino-2-(ethoxymethyl)-1-propyl-1H-imidazo[4,5-c]quinolin-7-yl]oxy}piperidine-1-carboxylate as a reddish-tan crystalline solid, mp 194-195° C.

Workup

  1. stirringthe mixture was stirred for 16 hours
  2. customThe layers were separated
  3. washthe organic fraction was sequentially washed with 5% aqueous sodium bicarbonate, water, and saturated aqueous sodium chloride
  4. dry with materialThe organic fraction was dried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. customevaporated under reduced pressure
  7. customRecrystallization from acetonitrile

Sources & evidence

ORD record
ord-db8eb1f252724329b3d87c85a384a35d
Source dataset
uspto-grants-2014_10
Patent number
US08871782B2

Reaction notes

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