Zinc(II) Iodide-Triethylsilane: A Novel Mild Reduction System for Direct Deoxygenation of Aryl Aldehydes, Ketones, and α,β-Unsaturated Enones

Znl(2)-TESH has been found to be a novel mild and efficient reduction system. This reagent, in contrast to the traditional ionic deoxygenation systems (TFA-R3SiH, BF3.OEt2-R3SiH, etc.), could directly deoxygenate different kinds of carbonyl compounds Such as aryl aldehydes, ketones, and alpha,beta-unsaturated enones to the corresponding hydrocarbons in moderate to excellent yields.