8-Hydroxyquinoline → HCID 178420580, compound

HRID 1883106Notes

Reaction equation

HRID 1883106 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-].[Cl-].[CH:17]1([Nb+4:22])[CH:21]=[CH:20][CH:19]=[CH:18]1>O1CCCC1>[Cl-:13].[Cl-:13].[Cl-:13].[N:11]1[C:12]2[C:7](=[CH:6][CH:5]=[CH:4][C:3]=2[O:2][Nb+3:22][CH:17]2[CH:21]=[CH:20][CH:19]=[CH:18]2)[CH:8]=[CH:9][CH:10]=1

Participants

5

Reactant 3

HCID 19238-HydroxyquinolineHCID 3028194LithiumHCID 178478580HCID 178478580, compound

Product 1

HCID 178420580HCID 178420580, compound

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

A solution of 0.01 moles of the lithium salt of 8-hydroxyquinoline in 30 mL of tetrahydrofuran (prepared as described in Example 3) is added dropwise to a solution of 0.01 moles of cyclopentadienyl niobium tetrachloride 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 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 by extraction with toluene
  4. customisolated
  5. customby evaporating the toluene
  6. customPolymers may be produced

Sources & evidence

ORD record
ord-ad0fd871ebc54ec394637aa72797e571
Source dataset
uspto-grants-2004_07
Patent number
US06759493B1

Reaction notes

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