Phthalimide → (S)-2-(2-(4-Fluorophenyl)propyl)isoindoline-1,3-dione

HRID 922696Notes

Reaction equation

HRID 922696 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C@H:8]([CH3:11])[CH2:9]O)=[CH:4][CH:3]=1.[C:12]1(=[O:22])[NH:16][C:15](=[O:17])[C:14]2=[CH:18][CH:19]=[CH:20][CH:21]=[C:13]12.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>C1COCC1>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C@H:8]([CH3:11])[CH2:9][N:16]2[C:12](=[O:22])[C:13]3[C:14](=[CH:18][CH:19]=[CH:20][CH:21]=3)[C:15]2=[O:17])=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 6809PhthalimideHCID 11776TriphenylphosphineHCID 12969931(S)-2-(4-Fluorophenyl)propan-1-ol

Product 1

HCID 67453498(S)-2-(2-(4-Fluorophenyl)propyl)isoindoline-1,3-dioneYield 59.4%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of (S)-2-(4-fluorophenyl)propan-1-ol (824 mg, 5.35 mmol, 1.0 equiv), phthalimide (0.824 g, 5.6 mmol, 1.05 equiv), and triphenyl phosphine (2.11 g, 8.03 mmol, 1.5 equiv) in dry THF (18 mL) was added dropwise diethyl azadicarboxylate (DEAD) (3.65 mL, 15% in toluene, 8.03 mmol, 1.5 equiv). The reaction mixture was stirred over 72 h and then concentrated in vacuo. Purification by silica gel chromatography (15-25% EtOAc/Hexanes) provided the title compound (0.9 g, 59%) which was characterized by 1H NMR.

Workup

  1. concentrationconcentrated in vacuo
  2. customPurification by silica gel chromatography (15-25% EtOAc/Hexanes)

Sources & evidence

ORD record
ord-8abe16427da145c3aa720ac140e06a44
Source dataset
uspto-grants-2016_03
Patent number
US09278962B2

Reaction notes

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