Tropolone → HCID 86744163, compound

HRID 1709709

Reaction equation

HRID 1709709 reaction equation
[CH:1]1[CH:8]=[CH:7][C:5](=[O:6])[C:4]([OH:9])=[CH:3][CH:2]=1.[OH-].[Cu+2:11].[OH-].CO.C(Cl)(Cl)Cl>O>[CH:1]1[CH:8]=[CH:7][C:5](=[O:6])[C:4]([OH:9])=[CH:3][CH:2]=1.[Cu:11]

Participants

5

Reactant 3

HCID 10789TropoloneHCID 164826Copper dihydroxideHCID 21584188Chloroform methanol

Product 1

HCID 86744163HCID 86744163, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Conditions

Temperature
80 °C

Procedure

To a solution of tropolone (244 mg) in water is added a suspension of copper (II) hydroxide (98 mg) in water. The mixture is heated at 80° C. and methanol-chloroform is added thereto until the mixture becomes homogeneous. The solution is concentrated under reduced pressure. The depositing green crystals are collected by filtration and dissolved in hot chloroform. After removing impurities by filtration, to the filtrate is added methanol. The solution is cooled with ice. The precipitating green needles are recovered by filtration to give tropolone copper complex (203 mg).

Workup

  1. concentrationThe solution is concentrated under reduced pressure
  2. filtrationThe depositing green crystals are collected by filtration
  3. dissolutiondissolved in hot chloroform
  4. customAfter removing impurities
  5. filtrationby filtration
  6. additionto the filtrate is added methanol
  7. temperatureThe solution is cooled with ice
  8. filtrationThe precipitating green needles are recovered by filtration
  9. customto give tropolone copper complex (203 mg)

Sources & evidence

ORD record
ord-68d14fe54655484ab97162e652757b6d
Source dataset
uspto-grants-1990_08
Patent number
US04950686

Linked notes

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