Methods of preparing α,β-unsaturated or α-halo ketones and aldehydes
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United States of America Patent
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Oct 24, 2017
Grant Date -
Jun 22, 2017
app pub date -
Dec 19, 2016
filing date -
Dec 21, 2015
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Abstract
Copper(II) bromide mediated oxidation of acylated enol and use of the reaction in the synthesis of α,β-unsaturated or α-bromo ketones or aldehydes are disclosed. The method provides an efficient and practical process for manufacturing dehydrohedione (DHH) and many other versatile α,β-unsaturated or α-bromo ketones or aldehydes in large scales to avoid using precious metal compounds.
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