Invention Grant
US08431742B2 Method for producing dodeca-2,10-diene-1,12-dicarboxylic acid or 1,12-dodecane-dicarboxylic acid by way of ring-opening cross metathesis (ROCM) of cyclooctene with acrylic acid
有权
通过环辛烯与丙烯酸的开环交叉复分解（ROCM）制备十二碳-2,10-二烯-1,12-二羧酸或1,12-十二烷二羧酸的方法
- Patent Title: Method for producing dodeca-2,10-diene-1,12-dicarboxylic acid or 1,12-dodecane-dicarboxylic acid by way of ring-opening cross metathesis (ROCM) of cyclooctene with acrylic acid
- Patent Title (中): 通过环辛烯与丙烯酸的开环交叉复分解（ROCM）制备十二碳-2,10-二烯-1,12-二羧酸或1,12-十二烷二羧酸的方法
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Application No.: US12922807Application Date: 2009-04-16
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Publication No.: US08431742B2Publication Date: 2013-04-30
- Inventor: Peter Hannen , Martin Roos , Harald Haeger
- Applicant: Peter Hannen , Martin Roos , Harald Haeger
- Applicant Address: DE Essen
- Assignee: Evonik Degussa GmbH
- Current Assignee: Evonik Degussa GmbH
- Current Assignee Address: DE Essen
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: DE102008002092 20080530
- International Application: PCT/EP2009/054519 WO 20090416
- International Announcement: WO2009/144089 WO 20091203
- Main IPC: C07C51/353
- IPC: C07C51/353 ; C07C51/43 ; C07C51/44 ; C07C57/13
Abstract:
The invention relates to a method for producing 1,2-dodeca-2,10-diene diacid and 1,12-dodecanoic acid whereby cyclooctene and acrylic acid are reacted with a ruthenium catalyst by way of a metathesis reaction at high substrate concentrations until the reaction takes place in substance, the resulting unsaturated dicarboxylic acid being precipitated and being hydrated in a second reaction step.
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