8-Hydroxyquinoline → HCID 178478639, compound

HRID 1006573Notes

Reaction equation

HRID 1006573 reaction equation
[Li].[OH:2][C:3]1[CH:4]=[CH:5][CH:6]=[C:7]2[C:12]=1[N:11]=[CH:10][CH:9]=[CH:8]2.[Cl-:13].[Cl-].[Cl-].[Cr+3:16]>O1CCCC1>[Cl-:13].[Cl-:13].[N:11]1[C:12]2[C:7](=[CH:6][CH:5]=[CH:4][C:3]=2[O:2][Cr+2:16])[CH:8]=[CH:9][CH:10]=1

Participants

5

Reactant 3

HCID 19238-HydroxyquinolineHCID 3028194LithiumHCID 6452300Chromium(3+) trichloride

Product 1

HCID 178478639HCID 178478639, compound

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

A solution of 0.01 moles of the lithium salt of 8-hydroxyquinoline (prepared as described in Example 3) in 50 mL of tetrahydrofuran is added dropwise to a solution of 0.01 moles of chromium trichloride in 50 mL of tetrahydrofuran at −78° C. After warming to room temperature and stirring overnight, the suspension is filtered and the solvent evaporated under vacuum. The product is recovered from the solids by extraction with toluene and then isolated by evaporating the toluene. Polymers may be produced using this catalyst by following the procedure of Example 4.

Workup

  1. filtrationthe suspension is filtered
  2. customthe solvent evaporated under vacuum
  3. customThe product is recovered from the solids by extraction with toluene
  4. customisolated
  5. customby evaporating the toluene
  6. customPolymers may be produced

Sources & evidence

ORD record
ord-021847ee940c4f3c921b2e2476261036
Source dataset
uspto-grants-2004_09
Patent number
US06790918B2

Reaction notes

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