N-Iodosuccinimide → HCID 23449208, compound

HRID 989866Notes

Reaction equation

HRID 989866 reaction equation
[I:1]N1C(=O)CCC1=O.[CH3:9][S:10][C:11]1[N:12]=[CH:13][N:14]2[CH:18]=[CH:17][S:16][C:15]=12>ClCCl.[Cl-].[Na+].O>[I:1][C:13]1[N:14]2[C:15]([S:16][CH:17]=[CH:18]2)=[C:11]([S:10][CH3:9])[N:12]=1

Participants

5

Reactant 2

HCID 120273N-IodosuccinimideHCID 226315297-Methylthioimidazo[5,1-b]thiazole

Product 1

HCID 23449208HCID 23449208, compoundYield 95.3%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 57417360Sodium chloride; waterSolvent

Procedure

N-Iodosuccinimide (3.08 g) was added under ice cooling to a solution of 2.28 g of 7-methylthioimidazo[5,1-b]thiazole in dichloromethane. The mixture was stirred at room temperature for7 hr. Saturated brine was added to the reaction mixture, followed by separation. The organic layer was washed with a dilute aqueous sodium thiosulfate solution and saturated brine in that order, and then dried over anhydrous magnesium sulfate. The solvent was removed by distillation. The residue was purified by column chromatography on silica gel (ethyl acetate:dichloromethane=1:1) to give 3.78 g of 5-iodo-7-methylthioimidazo[5,1-b]thiazole.

Workup

  1. customfollowed by separation
  2. washThe organic layer was washed with a dilute aqueous sodium thiosulfate solution and saturated brine in that order
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customThe solvent was removed by distillation
  5. customThe residue was purified by column chromatography on silica gel (ethyl acetate:dichloromethane=1:1)

Sources & evidence

ORD record
ord-e67d6905fb164985ace5c850496c8311
Source dataset
uspto-grants-2002_10
Patent number
US06458780B1

Reaction notes

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