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公开(公告)号：US09796653B2
公开(公告)日：2017-10-24
申请号：US15382782
申请日：2016-12-19
Applicant: International Flavors & Fragrances Inc.
IPC: C07C67/00 , C07C45/00 , C07C67/317 , C07C45/27
CPC classification number: C07C67/317 , C07C45/27 , C07C45/54 , C07C67/00 , C07C67/313 , C07C2101/08 , C07C2101/10 , C07C2101/14 , C07C2101/16 , C07C2102/08 , C07C2601/08 , C07C2601/10 , C07C2601/14 , C07C2601/16 , C07C2602/08 , C07C69/73 , C07C69/145 , C07C69/157 , C07C69/757 , C07C69/738 , C07C49/597 , C07C49/683 , C07C49/687 , C07C49/457 , C07C49/697 , C07C49/227 , C07C47/353
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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公开(公告)号：US20170174607A1
公开(公告)日：2017-06-22
申请号：US15382782
申请日：2016-12-19
Applicant: International Flavors & Fragrances Inc.
IPC: C07C67/317 , C07C67/00 , C07C45/27
CPC classification number: C07C67/317 , C07C45/27 , C07C45/54 , C07C67/00 , C07C67/313 , C07C2101/08 , C07C2101/10 , C07C2101/14 , C07C2101/16 , C07C2102/08 , C07C2601/08 , C07C2601/10 , C07C2601/14 , C07C2601/16 , C07C2602/08 , C07C69/73 , C07C69/145 , C07C69/157 , C07C69/757 , C07C69/738 , C07C49/597 , C07C49/683 , C07C49/687 , C07C49/457 , C07C49/697 , C07C49/227 , C07C47/353
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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