发明公开
EP1335893A1 VERFAHREN ZUR HERSTELLUNG VON POLY- ODER MONOMETHYLOLALKANSÄUREN
审中-公开
用于生产多晶硅或monomethylolalkanoic
- 专利标题： VERFAHREN ZUR HERSTELLUNG VON POLY- ODER MONOMETHYLOLALKANSÄUREN
- 专利标题（英）： Method for producing poly- or monomethylol alkanoic acids
- 专利标题（中）： 用于生产多晶硅或monomethylolalkanoic
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申请号： EP01993594.9申请日： 2001-10-31
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公开(公告)号： EP1335893A1公开(公告)日： 2003-08-20
- 发明人: WEIGL, Hagen , EBEL, Klaus , MAAS, Steffen , SCHULZ, Gerhard , DERNBACH, Matthias
- 申请人： BASF AKTIENGESELLSCHAFT
- 申请人地址： 67056 Ludwigshafen DE
- 专利权人： BASF AKTIENGESELLSCHAFT
- 当前专利权人： BASF AKTIENGESELLSCHAFT
- 当前专利权人地址： 67056 Ludwigshafen DE
- 优先权： DE10055181 20001108
- 国际公布： WO02038527 20020516
- 主分类号： C07C51/47
- IPC分类号： C07C51/47
摘要：
The invention relates to a method for producing poly- or monomethylol alkanoic acids of general formula (I), R being the same or different and meaning a substituted or unsubstituted aliphatic hydrocarbon with 1 to 22 C-atoms or a methylol group; from the corresponding poly- or monomethylol alkanals of general formula (II), R having the meaning above, by oxidation with hydrogen peroxide. The poly- or monomethylol alkanal of general formula (II) used in the reaction has an overall content of metal ions of groups 3 to 14 of the periodic table of up to 5 ppm. The method is used especially for producing dimethylol allkanoic acids from the corresponding dimethylol alkanals, especially for producing dimethylol butanal or dimethylol propanal.
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