Pivalic acid → HCID 178447535, compound

Participants

Reaction Steps

To a solution of bis(tetrahydroindenyl)zirconium dichloride (1.182 g, 2.950 mmol) and pivalic acid (0.900 g, 8.810 mmol) in toluene (45 ml) at 25° C. was added triethylamine (0.871 g, 8.610 mmol) with stirring. A white precipitate formed immediately which was removed by filtration. The title compound was isolated as a pale-yellow powder in 75% yield by evaporating the solvent under vacuum. The title compound such prepared exhibit purity above 98% based on NMR results. 1H NMR (toluene-d8) δ 6.24 (t, J=3.1 Hz, 1H), 5.85 (d, J=3.1 Hz, 2H), 2.72 (m, 2H), 2.48 (m, 2H), 1.91 (m, 2H), 1.49 (m, 2H), 1.14 (s, 27H). 13C NMR (toluene-d8) δ 200 and 197 (CO2), 114.4 and 114.1 (Cp), 39.2 (CMe3), 26.48 (CH3), 23.8 and 22.7 (CH2).

Provenance & Evidence