Hydrochloric Acid → Imidazo[1,2-a]pyridin-8-ol--hydrogen chloride (1/1)

HRID 1607304Notes

Reaction equation

HRID 1607304 reaction equation
C([O:8][C:9]1[C:10]2[N:11]([CH:15]=[CH:16][N:17]=2)[CH:12]=[CH:13][CH:14]=1)C1C=CC=CC=1.[ClH:18]>>[ClH:18].[OH:8][C:9]1[C:10]2[N:11]([CH:15]=[CH:16][N:17]=2)[CH:12]=[CH:13][CH:14]=1

Participants

3

Reactant 2

HCID 313Hydrochloric AcidHCID 134329748-(Benzyloxy)imidazo[1,2-a]pyridine

Product 1

HCID 13037245Imidazo[1,2-a]pyridin-8-ol--hydrogen chloride (1/1)

Procedure

In 80 ml of concentrated hydrochloric acid is dissolved 5 g of 8-benzyloxyimidazo[1,2-a]pyridine, and the solution is stirred at room temperature for 24 hours and then concentrated. After addition of 1-butanol, water is azeotropically removed by distillation, and the residue is crystallized from diethyl ether to give 3.8 g of the above-identified compound.

Workup

  1. concentrationconcentrated
  2. additionAfter addition of 1-butanol, water
  3. customis azeotropically removed by distillation
  4. customthe residue is crystallized from diethyl ether

Sources & evidence

ORD record
ord-6b9ee27b108a4e6ebca3c1b18619448a
Source dataset
uspto-grants-1989_09
Patent number
US04864022

Reaction notes

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