Phthalimide → 2-[1-(3-benzylquinolin-2-yl)-2-methylpropyl]-1H-isoindole-1,3(2H)-dione

HRID 271824Notes

Reaction equation

HRID 271824 reaction equation
[CH2:1]([C:8]1[C:9]([CH:18](O)[CH:19]([CH3:21])[CH3:20])=[N:10][C:11]2[C:16]([CH:17]=1)=[CH:15][CH:14]=[CH:13][CH:12]=2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:23]1(=[O:33])[NH:27][C:26](=[O:28])[C:25]2=[CH:29][CH:30]=[CH:31][CH:32]=[C:24]12.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.CC(OC(/N=N/C(OC(C)C)=O)=O)C>O1CCCC1>[CH2:1]([C:8]1[C:9]([CH:18]([N:27]2[C:23](=[O:33])[C:24]3[C:25](=[CH:29][CH:30]=[CH:31][CH:32]=3)[C:26]2=[O:28])[CH:19]([CH3:21])[CH3:20])=[N:10][C:11]2[C:16]([CH:17]=1)=[CH:15][CH:14]=[CH:13][CH:12]=2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 6809PhthalimideHCID 11776TriphenylphosphineHCID 5363146Diisopropyl azodicarboxylateHCID 598361951-(3-Benzylquinolin-2-yl)-2-methylpropan-1-ol

Product 1

HCID 598361922-[1-(3-benzylquinolin-2-yl)-2-methylpropyl]-1H-isoindole-1,3(2H)-dioneYield 61.8%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 1-(3-benzylquinolin-2-yl)-2-methylpropan-1-ol 13 (102 mg, 1 eq.) in dry tetrahydrofuran (3 ml) at 0° C., was added phthalimide (154 mg, 3 eq), triphenylphosphine (138 mg, 1.5 eq.), and DIAD (1.5 eq., 104 μl). The reaction was allowed to warm to room temperature and stirred overnight. The solvent was evaporated. The residue was dissolved in ethyl acetate. The organic layer was washed with saturated sodium bicarbonate, saturated sodium chloride, dried over magnesium sulfate, filtered and concentrated. The material was purified by flash chromatography to yield 91 mg of 2-[1-(3-benzylquinolin-2-yl)-2-methylpropyl]-1H-isoindole-1,3(2H)-dione 14 as yellow oil.

Workup

  1. customThe solvent was evaporated
  2. dissolutionThe residue was dissolved in ethyl acetate
  3. washThe organic layer was washed with saturated sodium bicarbonate, saturated sodium chloride
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe material was purified by flash chromatography

Sources & evidence

ORD record
ord-1afca6560f234cb0a159ec7313394931
Source dataset
uspto-grants-2008_11
Patent number
US07452996B2

Reaction notes

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