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公开(公告)号:US20020169342A1
公开(公告)日:2002-11-14
申请号:US10132195
申请日:2002-04-26
申请人: DEGUSSA AG
发明人: Nongyuan Shi , Bernd Drapal , Steffen Krill , Markus Julino , Klaus Huthmacher
IPC分类号: C07C045/68
CPC分类号: C07C45/513 , C07C45/62 , C07C49/203 , C07C49/04
摘要: A process for the preparation of null,null,null-unsaturated ketones and/or null,null,null,null-unsaturated ketones by the reaction of an unsaturated alcohol with an enol ether or mixture of enol ethers, with formation of ketals as a by-product, at temperatures of from 50null C. to 200null C., in the presence of an acid catalyst, whereby one or all of the reagents is/are heated to the reaction temperature of from 50null C. to 200null C. before the acid catalyst is added.
摘要翻译: 通过不饱和醇与烯醇醚或烯醇醚的混合物的反应制备β,γ,δ-不饱和酮和/或α,β,γ,δ-不饱和酮的方法,形成缩酮作为 副产物,在50℃至200℃的温度下,在酸催化剂存在下,由此将一种或全部试剂加热至50℃至200℃的反应温度 在添加酸催化剂之前。
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公开(公告)号:US20020161263A1
公开(公告)日:2002-10-31
申请号:US10132196
申请日:2002-04-26
申请人: DEGUSSA AG
发明人: Nongyuan Shi , Steffen Krill , Klaus Huthmacher , Bernd Drapal
IPC分类号: C07C045/68
CPC分类号: C07C45/62 , C07C45/513 , C07C49/203 , C07C49/04
摘要: A process for the preparation of ketones corresponding to the general Formula I 1 in which null,null,null-allenic, di-unsaturated ketones and/or null,null,null,null-conjugated, di-unsaturated ketones, obtained by reaction of propargyl alcohols with enol ethers and are converted in direct manner by hydrogenation to the saturated ketones corresponding to the general Formula I without purification by distillation.
摘要翻译: 制备相应于通式I的酮的方法,其中通过反应得到的β,γ,δ-泛酸,二不饱和酮和/或α,β,γ,δ-缀合的二不饱和酮, 具有烯醇醚的醇,并且通过氢化直接转化成对应于通式I的饱和酮而不通过蒸馏纯化。
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