Ethanol, reaction products with ammonia, distn. residues → 2-(2-Methyl-6,7-dihydro-8H-indeno[5,4-d][1,3]oxazol-8-ylidene)ethanamine

HRID 1661380Notes

Reaction equation

HRID 1661380 reaction equation
[CH3:1][C:2]1[O:3][C:4]2[C:13]3[C:12](=[CH:14][C:15]#[N:16])[CH2:11][CH2:10][C:9]=3[CH:8]=[CH:7][C:5]=2[N:6]=1.N.C(O)C>C(O)C.[Co]>[CH3:1][C:2]1[O:3][C:4]2[C:13]3[C:12](=[CH:14][CH2:15][NH2:16])[CH2:11][CH2:10][C:9]=3[CH:8]=[CH:7][C:5]=2[N:6]=1

Participants

5

Reactant 2

HCID 22020343Ethanol, reaction products with ammonia, distn. residuesHCID 67353411(2-Methyl-6,7-dihydro-8H-indeno[5,4-d][1,3]oxazol-8-ylidene)acetonitrile

Product 1

HCID 673538152-(2-Methyl-6,7-dihydro-8H-indeno[5,4-d][1,3]oxazol-8-ylidene)ethanamine

Reagents, catalysts & solvents 2

HCID 104730CobaltCatalystHCID 702EthanolSolvent

Procedure

To a solution of (2-methyl-6,7-dihydro-8H-indeno[5,4-d][1,3]oxazol-8-ylidene)acetonitrile (290 mg, 1.38 mmol) in ethanol (8 mL) were added Raney cobalt (3 g) and 2N ammonia/ethanol solution (4 mL), and the mixture was stirred at room temperature for 3 hr under a hydrogen atmosphere. The catalyst was filtered off using celite, and the filtrate was concentrated under reduced pressure to give the title compound. The obtained title compound was used for the reaction of Examples 3 and 5 without further purification.

Workup

  1. filtrationThe catalyst was filtered off
  2. concentrationthe filtrate was concentrated under reduced pressure

Sources & evidence

ORD record
ord-f3de37824f3f4c23acf1977abf7641fb
Source dataset
uspto-grants-2011_10
Patent number
US08030337B2

Reaction notes

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