Potassium Iodide → HCID 86650758, compound

HRID 875227Notes

Reaction equation

HRID 875227 reaction equation
[OH:1][N:2]=[C:3]([C:9]1[N:13]([CH3:14])[CH:12]=[N:11][CH:10]=1)[C:4]1[CH:8]=[CH:7][S:6][CH:5]=1.Br[CH2:16][C:17]1[N:22]=[C:21]([N:23]2[C:31](=[O:32])[C:30]3[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=3)[C:24]2=[O:33])[CH:20]=[CH:19][CH:18]=1.C(=O)([O-])[O-].[Cs+].[Cs+].[I-].[K+]>C(#N)C>[CH3:14][N:13]1[C:9]([C:3](=[N:2][O:1][CH2:16][C:17]2[N:22]=[C:21]([N:23]3[C:24](=[O:33])[C:25]4[C:30](=[CH:29][CH:28]=[CH:27][CH:26]=4)[C:31]3=[O:32])[CH:20]=[CH:19][CH:18]=2)[C:4]2[CH:8]=[CH:7][S:6][CH:5]=2)=[CH:10][N:11]=[CH:12]1

Participants

6

Reactant 4

HCID 4875Potassium IodideHCID 10796Cesium carbonateHCID 112323512-(6-Bromomethyl-pyridin-2-YL)-isoindole-1,3-dioneHCID 86650757HCID 86650757, compound

Product 1

HCID 86650758HCID 86650758, compoundYield 65.2%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a solution of N-hydroxy-1-(1-methyl-1H-imidazol-5-yl)-1-(3-thienyl)methanimine (4.96 g, 23.9 mmol) and 2-[6-(bromomethyl)pyridin-2-yl]-1H-isoindole-1,3(2H)-dione (8.35 g, 26.3 mmol) in acetonitrile (100 mL) were added cesium carbonate (16.4 g, 50.3 mmol) and potassium iodide (397 mg, 2.39 mmol). After stirring at room temperature for 28 h, the reaction mixture was filtered, the insolubles washed with ethyl acetate, and the combined filtrates concentrated in vacuo. Purification on silica gel afforded 2-{6-[({[(1-methyl-1H-imidazol-5-yl)(3-thienyl)methylene]amino}oxy)methyl]pyridin-2-yl}-1H-isoindole-1,3(2H)-dione [6.91 g, yield 62%; HPLC/MS: m/z=444 (M+H); log P(HCOOH)=1.73].

Workup

  1. filtrationthe reaction mixture was filtered
  2. washthe insolubles washed with ethyl acetate
  3. concentrationthe combined filtrates concentrated in vacuo
  4. customPurification on silica gel

Sources & evidence

ORD record
ord-4605350446074a98853ee1429b73e7b5
Source dataset
uspto-grants-2015_03
Patent number
US08981111B2

Reaction notes

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