发明授权
- 专利标题: Method for producing alkyl-substituted butenols
- 专利标题(中): 烷基取代丁烯醇的制备方法
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申请号: US10088385申请日: 2000-09-08
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公开(公告)号: US07169749B1公开(公告)日: 2007-01-30
- 发明人: Lothar Friesenhagen , Stephan Heck , Norbert Klein , Thomas Markert , Gerrit Pelzer , Markus Schneider
- 申请人: Lothar Friesenhagen , Stephan Heck , Norbert Klein , Thomas Markert , Gerrit Pelzer , Markus Schneider
- 申请人地址: JP Tokyo
- 专利权人: Kao Corporation
- 当前专利权人: Kao Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权: DE19944524 19990917
- 国际申请: PCT/EP00/08772 WO 20000908
- 国际公布: WO01/21568 WO 20010329
- 主分类号: C07C27/22
- IPC分类号: C07C27/22
摘要:
Alkyl-substituted butenols having the formula (I): R1—CH2—CH═CR2—CH2OH (I) wherein R1 is a saturated or olefinically unsaturated alkyl or cycloalkyl group having from 4 to 16 carbon atoms and wherein R1 is optionally substituted by an alkyl, cycloalkyl, aryl or alkaryl having up to 12 carbon atoms; R2 is hydrogen or an alkyl group having from 1 to about 6 carbon atoms are produced by a process which comprises: (1) reacting an aldehyde of the formula (II): R1—CH2—CHO (II) wherein R1 has the same meaning as in formula (I), with the corresponding lower aldehyde to form an unsaturated aldehyde in an inert organic solvent; (2) continuously contacting an optionally calcined copper/zinc catalyst with the unsaturated aldehyde under isothermal conditions at temperatures of from about 45 to about 60° C. and under a hydrogen pressure of from 1 to about 300 bar.
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