2-Phenylbutyric Acid → HCID 178454626, compound

Participants

Reaction Steps

16.4 g (51.1 mmoles) of hafnium tetrachloride (HfCl4) are suspended in 200 ml of toluene in a stirred 500 ml reactor. 16.8 g (102.2 mmoles) of 2-phenylbutyric acid dissolved in 100 ml of toluene, with a molar ratio 2-phenylbutyric acid/HfCl4 of 2.0, are added, under stirring, to the suspension, kept at room temperature. At the end of the addition, nitrogen is bubbled in for 3 hours, at room temperature, to facilitate the removal of hydrochloric acid. After this period, the suspension is filtered while hot and a solution is obtained which shows the following analysis: Hf=812 mmoles/l, Cl=1476 mmoles/l, with an atomic ratio Cl/Hf of 1.8. The yield in hafnium in solution is equal to 95.1% with respect to the initial hafnium.

Provenance & Evidence