Hydrochloric Acid → 4,6-Diaminoresorcinol Dihydrochloride

HRID 325143

Reaction equation

HRID 325143 reaction equation
[ClH:1].[NH2:2][C:3]1[CH:9]=[C:8]([NH2:10])[C:6]([OH:7])=[CH:5][C:4]=1[OH:11]>O>[ClH:1].[ClH:1].[NH2:2][C:3]1[CH:9]=[C:8]([NH2:10])[C:6]([OH:7])=[CH:5][C:4]=1[OH:11]

Participants

4

Reactant 2

HCID 313Hydrochloric Acid2×HCID 4588214,6-Diaminoresorcinol

Product 1

HCID 27336484,6-Diaminoresorcinol Dihydrochloride

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

After the active carbon treatment, solids are deposited by salting out with addition of concentrated hydrochloric acid, and an amount of added hydrochloric acid may be 4-20 times by mole of 4,6-diaminoresorcinol. It is influenced by the amount of water from the economical viewpoint, but 4-8 times by mole are preferable. 4,6-Diaminoresorcinol dihydrochloride is obtained by drying after filtration.

Sources & evidence

ORD record
ord-73f26aa2dd3f4488ac67e16b4edf839a
Source dataset
uspto-grants-2001_04
Patent number
US06222074B1

Linked notes

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