Methyl iodide → HCID 178503863, compound

HRID 2119806Notes

Reaction equation

HRID 2119806 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH3:20])=[C:6]([NH:8][C:9]([NH:11][C:12]2[C:13]([CH3:19])=[N:14][N:15]([CH3:18])[C:16]=2[CH3:17])=[S:10])[CH:7]=1.[CH3:21]I>CC(C)=O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH3:20])=[C:6]([NH:8]/[C:9](=[N:11]\[C:12]2[C:13]([CH3:19])=[N:14][N:15]([CH3:18])[C:16]=2[CH3:17])/[S:10][CH3:21])[CH:7]=1

Participants

4

Reactant 2

HCID 6328Methyl iodideHCID 98578071-(5-Chloro-2-methyl-phenyl)-3-(1,3,5-trimethyl-1H-pyrazol-4-yl)-thiourea

Product 1

HCID 178503863HCID 178503863, compoundYield 74%

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

Under anhydrous conditions, a solution of 1-(5-Chloro-2-methyl-phenyl)-3-(1,3,5-trimethyl-1H-pyrazol-4-yl)-thiourea (2.3 g, 7.5 mmol) produced in example 8 and methyl iodide (0.94 mL, 15 mmol) in 70 mL of acetone was stirred at ambient temperature for 64 hours. The reaction mixture was concentrated in vacuo and partitioned between CH2Cl2 and saturated aqueous NaHCO3 solution. The organic phase was washed with dilute Na2S2O3 and dried (Na2SO4). Removal of solvent and crystallization of the residue from Et2O provided 1.78 g of title compound as a white solid (74% of theory, m.p. 134-135° C.).

Workup

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. custompartitioned between CH2Cl2 and saturated aqueous NaHCO3 solution
  3. washThe organic phase was washed with dilute Na2S2O3
  4. dry with materialdried (Na2SO4)
  5. customRemoval of solvent and crystallization of the residue from Et2O

Sources & evidence

ORD record
ord-ea0cdd86499340cabdaef2b0eafa7862
Source dataset
uspto-grants-2004_02
Patent number
US06686476B2

Reaction notes

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