2-tert-butyl-1-(2-hydroxyethyl)-5-nitro-1H-indole-4-carbonitrile → 5-amino-2-tert-butyl-1-(2-hydroxyethyl)-1H-indole-4-carbonitrile

HRID 468507Notes

Reaction equation

HRID 468507 reaction equation
[C:1]([C:5]1[N:6]([CH2:19][CH2:20][OH:21])[C:7]2[CH:8]=[CH:9][C:10]([N+:16]([O-])=O)=[C:11]([C:14]#[N:15])[C:12]=2[CH:13]=1)([CH3:4])([CH3:3])[CH3:2]>C(O)C.[Pd]>[NH2:16][C:10]1[CH:9]=[CH:8][C:7]2[N:6]([CH2:19][CH2:20][OH:21])[C:5]([C:1]([CH3:2])([CH3:3])[CH3:4])=[CH:13][C:12]=2[C:11]=1[C:14]#[N:15]

Participants

4

Reactant 1

HCID 581832442-tert-butyl-1-(2-hydroxyethyl)-5-nitro-1H-indole-4-carbonitrile

Product 1

HCID 581832225-amino-2-tert-butyl-1-(2-hydroxyethyl)-1H-indole-4-carbonitrileYield 93%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 702EthanolSolvent

Procedure

To a solution of 2-tert-butyl-1-(2-hydroxyethyl)-5-nitro-1H-indole-4-carbonitrile (180 mg, 0.63 mmol) in ethanol (6 mL) under N2 atmosphere was added Pd—C (5% wt, 18 mg). The reaction was flushed with N2 (g) and then with N2 (g) and stirred under H2 (atm) at room temperature for 1.5 hours. The reaction was filtered over Celite and concentrated to yield the product (150 mg, 93%). ESI-MS m/z calc. 257.2, found 258.5 (M+1)+. Retention time 1.26 minutes.

Workup

  1. customThe reaction was flushed with N2 (g)
  2. filtrationThe reaction was filtered over Celite
  3. concentrationconcentrated

Sources & evidence

ORD record
ord-09be4b85139148b3bf60e4e820ec6bdd
Source dataset
uspto-grants-2014_01
Patent number
US08623905B2

Reaction notes

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