Hydrochloric Acid → [5-Ethynyl-2-(3-hexyl-phenyl)-3-methyl-3H-imidazol-4-yl]-(4-pyrrolidin-1-yl-piperidin-1-yl)-methanone

HRID 545376Notes

Reaction equation

HRID 545376 reaction equation
[CH2:1]([C:7]1[CH:8]=[C:9]([C:13]2[N:17]([CH3:18])[C:16]([C:19]([N:21]3[CH2:26][CH2:25][CH:24]([N:27]4[CH2:31][CH2:30][CH2:29][CH2:28]4)[CH2:23][CH2:22]3)=[O:20])=[C:15]([C:32]#[C:33][Si](C)(C)C)[N:14]=2)[CH:10]=[CH:11][CH:12]=1)[CH2:2][CH2:3][CH2:4][CH2:5][CH3:6].C(=O)([O-])[O-].[K+].[K+].Cl>CCO.C1COCC1>[C:32]([C:15]1[N:14]=[C:13]([C:9]2[CH:10]=[CH:11][CH:12]=[C:7]([CH2:1][CH2:2][CH2:3][CH2:4][CH2:5][CH3:6])[CH:8]=2)[N:17]([CH3:18])[C:16]=1[C:19]([N:21]1[CH2:26][CH2:25][CH:24]([N:27]2[CH2:28][CH2:29][CH2:30][CH2:31]2)[CH2:23][CH2:22]1)=[O:20])#[CH:33]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 11430Potassium CarbonateHCID 57541081[2-(3-Hexyl-phenyl)-3-methyl-5-trimethylsilanylethynyl-3H-imidazol-4-yl]-(4-pyrrolidin-1-yl-piperidin-1-yl)-methanone

Product 1

HCID 57541130[5-Ethynyl-2-(3-hexyl-phenyl)-3-methyl-3H-imidazol-4-yl]-(4-pyrrolidin-1-yl-piperidin-1-yl)-methanoneYield 60.5%

Reagents, catalysts & solvents 1

HCID 21873804Tetrahydrofuran ethanolSolvent

Procedure

To a solution of 0.52 g (1.00 mmol) of [2-(3-hexyl-phenyl)-3-methyl-5-trimethylsilanylethynyl-3H-imidazol-4-yl]-(4-pyrrolidin-1-yl-piperidin-1-yl)-methanone (example 12) in 10 ml EtOH:THF 5:1 was added 0.277 g (2.0 mmol) of solid potassium carbonate and the reaction mixture was stirred at RT for 18 hours. It was then poured into crashed ice, acidified with HCl (25% in water) and extracted twice with CH2Cl2; the organic phases were washed with water, dried over magnesium sulfate, filtered and evaporated. The residue was purified by flash column chromatography (CH2Cl2/MeOH 1:0 to 9:1) to give 0.27 g (60%) of the title compound as light brown solid. MS: 447.4 (MH+).

Workup

  1. additionIt was then poured
  2. extractionextracted twice with CH2Cl2
  3. washthe organic phases were washed with water
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. customevaporated
  7. customThe residue was purified by flash column chromatography (CH2Cl2/MeOH 1:0 to 9:1)

Sources & evidence

ORD record
ord-6fc60d15d096428eb7bfa6da6e616da9
Source dataset
uspto-grants-2011_05
Patent number
US07935707B2

Reaction notes

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