8-Hydroxyquinoline → HCID 178420580, compound

HRID 1006572Notes

Reaction equation

HRID 1006572 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-babece64ff5f4817a4beb39e38d3519d
Source dataset
uspto-grants-2004_09
Patent number
US06790918B2

Reaction notes

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