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

HRID 1474080
Notes
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Reaction equation

HRID 1474080 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.CCOC(/N=N/C(OCC)=O)=O>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
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 6809PhthalimideHCID 11776TriphenylphosphineHCID 5462977Diethyl azodicarboxylateHCID 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 8028
Tetrahydrofuran
Solvent

Procedure

To a solution of (S)-2-(4-fluorophenyl)propan-1-ol (0.82 g, 5.35 mmol, 1.0 equiv), phthalimide (0.82 g, 5.6 mmol, 1.05 equiv), and triphenyl phosphine (2.1 g, 8.03 mmol, 1.5 equiv) in dry THF (18 mL) was added dropwise diethylazodicarboxylate (3.6 mL, 15% in toluene, 8.0 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%).

Workup

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

Sources & evidence

ORD record
ord-17bae1fbbeca4a419538036641c9cdcd
Source dataset
uspto-grants-2015_04
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09018223B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes