5-Amino-4-methyl-2-(1-methyl-piperidin-4-yl)-6-nitro-isoindole-1,3-dione → 5,6-Diamino-4-methyl-2-(1-methyl-piperidin-4-yl)-isoindole-1,3-dione

HRID 929090Notes

Reaction equation

HRID 929090 reaction equation
[NH2:1][C:2]1[C:3]([CH3:23])=[C:4]2[C:8](=[CH:9][C:10]=1[N+:11]([O-])=O)[C:7](=[O:14])[N:6]([CH:15]1[CH2:20][CH2:19][N:18]([CH3:21])[CH2:17][CH2:16]1)[C:5]2=[O:22]>[Pd].CO>[NH2:1][C:2]1[C:3]([CH3:23])=[C:4]2[C:8](=[CH:9][C:10]=1[NH2:11])[C:7](=[O:14])[N:6]([CH:15]1[CH2:16][CH2:17][N:18]([CH3:21])[CH2:19][CH2:20]1)[C:5]2=[O:22]

Participants

4

Reactant 1

HCID 597618595-Amino-4-methyl-2-(1-methyl-piperidin-4-yl)-6-nitro-isoindole-1,3-dione

Product 1

HCID 597617275,6-Diamino-4-methyl-2-(1-methyl-piperidin-4-yl)-isoindole-1,3-dioneYield 97.4%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

To a suspension of 5-Amino-4-methyl-2-(1-methyl-piperidin-4-yl)-6-nitro-isoindole-1,3-dione (1.7 g, 5.34 mmol) and 10% Pd/C (250 mg) was added MeOH (100 mL) carefully and evacuated in vacuo. The flask was filled with hydrogen under balloon pressure and stirred for 1 h. The reaction mixture was filtered and evaporated in vacuo to afford the crude 5,6-diamino-4-methyl-2-(1-methyl-piperidin-4-yl)-isoindole-1,3-dione (1.5 g, quant.), which was used as such for further reaction.

Workup

  1. customevacuated in vacuo
  2. additionThe flask was filled with hydrogen under balloon pressure
  3. filtrationThe reaction mixture was filtered
  4. customevaporated in vacuo

Sources & evidence

ORD record
ord-6b510026dc694cabb4c27dec4b0adfc3
Source dataset
uspto-grants-2016_03
Patent number
US09290503B2

Reaction notes

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