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 2361146Notes

Reaction equation

HRID 2361146 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-3f2cd359e623452f8530a2e8364de732
Source dataset
uspto-grants-2014_04
Patent number
US08686005B2

Reaction notes

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