Copper(II) bromide mediated oxidation of acylated enol and use of the reaction in the synthesis of ,-unsaturated or -bromo ketones or aldehydes are disclosed. The method provides an efficient and practical process for manufacturing dehydrohedione (DHH) and many other versatile ,-unsaturated or -bromo ketones or aldehydes in large scales to avoid using precious metal compounds.

Copper(II) bromide mediated oxidation of acylated enol and use of the reaction in the synthesis of ,-unsaturated or -bromo ketones or aldehydes are disclosed. The method provides an efficient and practical process for manufacturing dehydrohedione (DHH) and many other versatile ,-unsaturated or -bromo ketones or aldehydes in large scales to avoid using precious metal compounds.

Copper(II) bromide mediated oxidation of acylated enol and use of the reaction in the synthesis of ,-unsaturated or -bromo ketones or aldehydes are disclosed. The method provides an efficient and practical process for manufacturing dehydrohedione (DHH) and many other versatile ,-unsaturated or -bromo ketones or aldehydes in large scales to avoid using precious metal compounds.

Copper(II) bromide mediated oxidation of acylated enol and use of the reaction in the synthesis of ,-unsaturated or -bromo ketones or aldehydes are disclosed. The method provides an efficient and practical process for manufacturing dehydrohedione (DHH) and many other versatile ,-unsaturated or -bromo ketones or aldehydes in large scales to avoid using precious metal compounds.