Hydrochloric Acid → 3-(3-Diethylaminopropylamino)-4-hydroxyindazole hydrochloride

HRID 580136Notes

Reaction equation

HRID 580136 reaction equation
[CH2:1]([N:3]([CH2:18][CH3:19])[CH2:4][CH2:5][CH2:6][NH:7][C:8]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][C:15]=2[OH:17])[NH:10][N:9]=1)[CH3:2].[ClH:20].C(OCC)C>C(O)C>[ClH:20].[CH2:18]([N:3]([CH2:1][CH3:2])[CH2:4][CH2:5][CH2:6][NH:7][C:8]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][C:15]=2[OH:17])[NH:10][N:9]=1)[CH3:19]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 3283Diethyl EtherHCID 1355831003-{[3-(Diethylamino)propyl]amino}-1,2-dihydro-4H-indazol-4-one

Product 1

HCID 1355831083-(3-Diethylaminopropylamino)-4-hydroxyindazole hydrochloride

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

In 50 ml of absolute ethyl alcohol was dissolved 3.0 g of the 3-(3-diethylaminopropylamino)-4-hydroxyindazole, and into the solution was introduced dried hydrogen chloride gas under cooling with ice. To the solution was added anhydrous diethyl ether to separate crystals. Then the crystals were obtained by filtration and dried to give 3-(3-diethylaminopropylamino)-4-hydroxyindazole hydrochloride having the following analytical value.

Workup

  1. temperatureunder cooling with ice
  2. customto separate crystals
  3. customThen the crystals were obtained by filtration
  4. customdried

Sources & evidence

ORD record
ord-0d1d900b35af47d0a23dba247e1d3f9c
Source dataset
uspto-grants-1988_06
Patent number
US04751302

Reaction notes

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