8-Hydroxyquinoline → HCID 178478625, compound

Participants

Reaction Steps

The reaction is performed under an atmosphere of dry nitrogen. 8-Quinolinol powder (1.45 g, 10.0 mmol) is added to a flask and is stirred at room temperature for 10 min. Heptane (100 mL) is added, and the mixture is stirred at 40° C. for 30 min. The stirring rate is adjusted to prevent solids from depositing on the walls of the flask. Titanium tetrachloride (10 mL of 1.0 M solution in heptane) is added dropwise to the quinolinol, and the reaction mixture is stirred at room temperature for 20 h at a rate effective to prevent solids from depositing on the walls of the flask. The color changes from white to tomato-juice red. The solids are isolated by decanting the liquid portion. Residual solvent is removed from the solids using vacuum and a nitrogen purge for 30 min. The flask containing the red, solid product, 8-quinolinoxytitanium trichloride (3.04 g), is transferred to a dry box. For comparison purposes, a sample of this material is tested in the ethylene polymerization described in Example 6. The results are reported in Table 1 for Example “C1.”

Provenance & Evidence