Methyl iodide → HCID 11418800, compound

HRID 748078Notes

Reaction equation

HRID 748078 reaction equation
[H-].[Na+].[C:3]([C:5]1[CH:10]=[CH:9][C:8]([S:11]([NH:14][CH:15]([C:21]2[N:25]([C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)[N:24]=[CH:23][CH:22]=2)[CH:16]([CH2:19][CH3:20])[CH2:17][CH3:18])(=[O:13])=[O:12])=[CH:7][CH:6]=1)#[N:4].I[CH3:33]>C1COCC1>[C:3]([C:5]1[CH:10]=[CH:9][C:8]([S:11]([N:14]([CH:15]([C:21]2[N:25]([C:26]3[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=3)[N:24]=[CH:23][CH:22]=2)[CH:16]([CH2:17][CH3:18])[CH2:19][CH3:20])[CH3:33])(=[O:13])=[O:12])=[CH:7][CH:6]=1)#[N:4]

Participants

5

Reactant 3

HCID 6328Methyl iodide2×HCID 24758Sodium hydride2×HCID 11177293HCID 11177293, compound

Product 1

HCID 11418800HCID 11418800, compoundYield 61.9%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

To a suspension of NaH (16.3 mg, 4190 mol, 60% dispersion in mineral oil) in THF (300 μL) at 0° C. was added a solution of 4-cyano-N-[2-ethyl-1-(1-phenyl-1H-pyrazol-5-yl)butyl]benzenesulfonamide (example 37, 140 mg, 340 μmol) in THF (600 EL). The reaction mixture was warmed to room temperature, and after 20 min iodomethane (45 μL, 714 μmol) was added. The mixture was allowed to stir overnight. TLC indicated that the reaction was not complete. Additional aliquots of NaH and iodomethane were added until the reaction was driven to completion. The mixture was then quenched with H2O and extracted with EtOAc twice. The organic extracts were dried (MgSO4) and concentrated. Column chromatography (EtOAc/hexanes, 1:1) provided 89 mg (57% yield) of the title compound as a glassy yellow solid. mp 37.8-54° C.; Mass Spectrum (ES): 481.1;

Workup

  1. customThe mixture was then quenched with H2O
  2. extractionextracted with EtOAc twice
  3. dry with materialThe organic extracts were dried (MgSO4)
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-ac2d55db61a243b6b035b50ae3ac89e1
Source dataset
uspto-grants-2008_07
Patent number
US07399778B2

Reaction notes

Loading…