发明名称 |
METHOD FOR PRODUCING DIOLS |
摘要 |
The invention relates to a process for the production of diols with a special structure which are characterized by formula (I). These diols are substances which, besides two OH groups, contain a C═C double bond so that they are suitable as monomers for the production of polymers. The process comprises hydrolyzing a corresponding cyclic precursor in aqueous medium in the presence of an acid dissolved in that medium, the hydrolysis being accompanied by the elimination of a carbonyl compound, and subsequently neutralizing the acid present in the reaction mixture with a base, the base having a pKb value above 0.18 and preferably above 3.0 and being present in heterogeneous form. |
申请公布号 |
EP2144865(B1) |
申请公布日期 |
2016.07.13 |
申请号 |
EP20080749287 |
申请日期 |
2008.05.02 |
申请人 |
COGNIS IP MANAGEMENT GMBH |
发明人 |
MCKENNA, PETER;SMALLRIDGE, MARK;MATTHEWS, MELISSA;ROBERTS, SIMON |
分类号 |
C07C67/29;C07C67/56;C07C69/54;C08F220/28;C08F220/30;G02B1/04 |
主分类号 |
C07C67/29 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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