Hydrochloric Acid → HCID 178428113, compound

HRID 1700594Notes

Reaction equation

HRID 1700594 reaction equation
[CH3:1][C:2]1[C:11]2[C:10](=O)[CH2:9][CH:8]([C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][N:14]=3)[CH2:7][C:6]=2[N:5]=[CH:4][CH:3]=1.[C:19]([NH:22][NH2:23])([NH2:21])=[NH:20].[ClH:24].Cl.O>C(O)C>[ClH:24].[NH:22]([N:23]=[C:10]1[CH2:9][CH:8]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][N:14]=2)[CH2:7][C:6]2[N:5]=[CH:4][CH:3]=[C:2]([CH3:1])[C:11]1=2)[C:19]([NH2:21])=[NH:20]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 11118115HCID 11118115, compoundHCID 178418668HCID 178418668, compound

Product 1

HCID 178428113HCID 178428113, compoundYield 95.2%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A mixture of 4-methyl-7-(2-pyridyl)-5,6,7,8-tetrahydroquinolin-5-one (0.28 g), aminoguanidine hydrochloride (0.14 g), concentrated hydrochloric acid (0.41 ml), water (0.41 ml) and ethanol (30 ml) was refluxed for 6 hours. Under reduced pressure, the solvent was evaporated, and the residue was dissolved in water. The solution was washed with ethyl acetate and concentrated under reduced pressure, and the residue was recrystallized from water-ethanol to give 5-guanidinoimino-4-methyl-7-(2-pyridyl)-5,6,7,8-tetrahydroquinoline hydrochloride (Compound 75) (0.37 g) as colorless crystals.

Workup

  1. temperaturewas refluxed for 6 hours
  2. customUnder reduced pressure, the solvent was evaporated
  3. dissolutionthe residue was dissolved in water
  4. washThe solution was washed with ethyl acetate
  5. concentrationconcentrated under reduced pressure
  6. customthe residue was recrystallized from water-ethanol

Sources & evidence

ORD record
ord-690ac29612744b97903adfbbf6ac7b0e
Source dataset
uspto-grants-2002_02
Patent number
US06350749B1

Reaction notes

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