Deoxygenation of Aldehydes and Ketones Using Dichloro Bis(1,4-diazabicyclo[2.2.2]octane)(tetrahydroborato) Zirconium(IV)

Saturated aldehydes and ketones are converted via their p-toluenesulfonyl hydrazones to the corresponding alkanes using dichloro bis(1,4-diazabicyclo[2.2.2]octane)(tetrahydroborato) zirconium(IV) (ZrBDC). The reactions were performed in DMFsulfolane at 110 °C and gave the corresponding alkanes in high yields. Regioselectivity in the reduction of (alpha),(beta)-unsaturated carbonyl groups was also observed.