peracetic acid; (E)-crotonaldehyde; oxygen; vanadyl(IV) (Me-acetylacetonate)2 in various solvent(s) T=0°C; P=760 Torr; 72 h;

<b>Multi-step reaction with 2 steps<br /> </b>1: Et₃N / CH₂Cl₂ <br />2: 51 percent / [Rh(CO₂Cl]2 / toluene / 15 h / 110 &deg;C<br /> <br /> &nbsp;