HCID 21584328, compound → HCID 21584267, compound

HRID 369958Notes

Reaction equation

HRID 369958 reaction equation
[ClH:1].[N+:2]([C:5]1[CH:18]=[CH:17][C:8]2[CH2:9][CH:10]3[N:15]([CH2:16][C:7]=2[CH:6]=1)[CH2:14][CH2:13][CH2:12][CH2:11]3)([O-])=O>C(O)C.[Pd]>[ClH:1].[CH2:11]1[CH:10]2[N:15]([CH2:16][C:7]3[CH:6]=[C:5]([NH2:2])[CH:18]=[CH:17][C:8]=3[CH2:9]2)[CH2:14][CH2:13][CH2:12]1

Participants

4

Reactant 1

HCID 21584328HCID 21584328, compound

Product 1

HCID 21584267HCID 21584267, compoundYield 95.3%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 702EthanolSolvent

Procedure

8-Nitro-1,3,4,6,11,11a-hexahydro-2H-benzo[b]quinolizine hydrochloride (2.93 g, 10.9 mmol) was dissolved in ethanol (150 ml) and 10% palladium-on-carbon (0.4 g) was added and the solution was shaken on a Parr Hydrogenator for 2 h. The catalyst was filtered off and the catalyst was washed with water. The filtrate was concentrated and absolute ethanol was added and evaporated to drive off excess water. The resulting solid was taken up in hot ethanol (75 ml) and ether (100 ml) was added slowly. The precipitate which formed was collected and dried in the air to give the title compound as an off-white solid (2.48 g, 95%), m.p. 241-3° C. (dec.).

Workup

  1. filtrationThe catalyst was filtered off
  2. washthe catalyst was washed with water
  3. concentrationThe filtrate was concentrated
  4. additionabsolute ethanol was added
  5. customevaporated
  6. additionether (100 ml) was added slowly
  7. customThe precipitate which formed
  8. customwas collected
  9. customdried in the air

Sources & evidence

ORD record
ord-c9a5ceb6f3464edb98a166c30b715df4
Source dataset
uspto-grants-2000_10
Patent number
US06140322

Reaction notes

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