2-Bromo-1-(4-hydroxyphenyl)ethanone → HCID 67135685, compound

HRID 1873344Notes

Reaction equation

HRID 1873344 reaction equation
[Br:1][CH2:2][C:3]([C:5]1[CH:10]=[CH:9][C:8]([OH:11])=[CH:7][CH:6]=1)=O.[NH2:12][C:13]1[CH:18]=[CH:17][C:16]([Br:19])=[CH:15][N:14]=1>C(#N)C>[BrH:1].[Br:19][C:16]1[CH:17]=[CH:18][C:13]2[N:14]([CH:2]=[C:3]([C:5]3[CH:10]=[CH:9][C:8]([OH:11])=[CH:7][CH:6]=3)[N:12]=2)[CH:15]=1

Participants

4

Reactant 2

HCID 49642-Bromo-1-(4-hydroxyphenyl)ethanoneHCID 706222-Amino-5-bromopyridine

Product 1

HCID 67135685HCID 67135685, compound

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

First, 2-bromo-4′-hydroxyacetophenone and 2-amino-5-bromopyridine are dissolved in an inactive solvent such as acetonitrile, and are allowed to react with each other at a reflux temperature for 2 to 6 hours to produce 6-bromo-2-(4′-hydroxyphenyl)imidazo[1,2-a]pyridine hydrobromide salt as white precipitates. The solvent used in this instance may be acetonitrile or another solvent that is usually employed in a similar reaction, for example, methanol and acetone. The reaction temperature may be a temperature allowing refluxing, for example, 90° C. when the solvent is acetonitrile. The amount of the solvent to be used may be an amount sufficient to effect the reaction, however, it should be noted that if the solvent is too much, it will become difficult to obtain precipitates of reaction products. For example, when 2-bromo-4′-hydroxyacetophenone in an amount corresponding to 10 mmol is used for the reaction, the amount of a solvent to be used can be about 40 to 50 mL.

Workup

  1. customto react with each other at a reflux temperature for 2 to 6 hours

Sources & evidence

ORD record
ord-f8b3b478daa84c2faa892024bd27bfee
Source dataset
uspto-grants-2012_11
Patent number
US08303935B2

Reaction notes

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