Vanadyl isopropoxide is the metal alkoxide with the formula VO(O-iPr)<sub>3</sub> (iPr = CH(CH<sub>3</sub>)<sub>2</sub>). A yellow volatile liquid, it is a common alkoxide of vanadium. It is used as a reagent and as a precursor to vanadium oxides. The compound is diamagnetic. It is prepared by alcoholysis of vanadyl trichloride:
The related cyclopentanoxide VO(O-CH(CH<sub>2</sub>)<sub>4</sub>)<sub>3</sub> is a dimer, one pair of alkoxide ligands bind weakly trans to the vanadyl oxygens.