- 专利标题： Synthesis of long-chain unsaturated fatty acid by chemical reaction of carbon chain extension
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申请号： US15739533申请日： 2016-06-27
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公开(公告)号： US10252972B2公开(公告)日： 2019-04-09
- 发明人: Naomichi Bamba , Yoshihisa Misawa , Hiroshi Tabata , Yoshio Shimizu
- 申请人： Bizen Chemical Co., Ltd.
- 申请人地址： JP Akaiwa-shi, Okayama
- 专利权人： Bizen Chemical Co., Ltd.
- 当前专利权人： Bizen Chemical Co., Ltd.
- 当前专利权人地址： JP Akaiwa-shi, Okayama
- 代理机构： Seed IP Law Group LLP
- 优先权： JP2015-131053 20150630
- 国际申请： PCT/JP2016/003084 WO 20160627
- 国际公布： WO2017/002353 WO 20170105
- 主分类号： C07C33/02
- IPC分类号： C07C33/02 ; C07C67/32 ; C07C29/147 ; C07C303/28 ; C07C309/66 ; C07C67/343 ; C07C69/587 ; C07C69/602
摘要：
A method of chemically extending a carbon chain of an unsaturated fatty acid for conversion into a different unsaturated fatty acid has been reported. The present invention shortens reaction steps of conventional methods, and completes a carbon chain extending reaction in a shorter time. The present invention provides a method of extending a carbon chain of an unsaturated fatty acid by two carbons, comprising steps of four stages including a short-path conversion reaction of an unsaturated fatty chain obtained from an unsaturated fatty acid into a malonic ester derivative, and heating of the malonic ester derivative to reflux in a lower fatty acid solution. The method of the present invention can complete a carbon chain extending reaction in a shorter time.