N-Hydroxyphthalimide → HCID 86694001, compound

HRID 330975Notes

Reaction equation

HRID 330975 reaction equation
[OH:1][N:2]1[C:10](=[O:11])[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[C:3]1=[O:12].O[CH:14]1[CH2:19][N:18]([C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])[CH2:17][C:16]2[N:27]([CH3:30])[N:28]=[CH:29][C:15]1=2.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>C1COCC1>[O:12]=[C:3]1[C:4]2[C:9](=[CH:8][CH:7]=[CH:6][CH:5]=2)[C:10](=[O:11])[N:2]1[O:1][CH:14]1[CH2:19][N:18]([C:20]([O:22][C:23]([CH3:24])([CH3:25])[CH3:26])=[O:21])[CH2:17][C:16]2[N:27]([CH3:30])[N:28]=[CH:29][C:15]1=2

Participants

6

Reactant 4

HCID 10665N-HydroxyphthalimideHCID 11776TriphenylphosphineHCID 5363146Diisopropyl azodicarboxylateHCID 69345851HCID 69345851, compound

Product 1

HCID 86694001HCID 86694001, compoundYield 69.4%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a mixture of 2-hydroxy-1H-isoindole-1,3(2H)-dione (2.95 g, 18.1 mmol), tert-butyl 4-hydroxy-1-methyl-1,4,5,7-tetrahydro-6H-pyrazolo[3,4-c]pyridine-6-carboxylate 135 (US2005/245505 A1, 2.29 g, 9.04 mmol) and triphenylphosphine (4.74 g, 18.1 mmol) in THF (100 mL) was added DIAD (3.85 mL, 19.9 mmol) slowly at room temperature. The resulting mixture was stirred at room temperature overnight and concentrated to provide a residue which was subjected to chromatography to give 136 (2.5 g, 35%) as a yellow solid.

Workup

  1. concentrationconcentrated
  2. customto provide a residue which

Sources & evidence

ORD record
ord-555c3cb4d8c142d093a667c09dedc4f6
Source dataset
uspto-grants-2014_11
Patent number
US08877743B2

Reaction notes

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