-
公开(公告)号：EP1294667A1
公开(公告)日：2003-03-26
申请号：EP01953986.5
申请日：2001-06-19
CPC分类号： C07C45/002
摘要： The invention relates to a method for producing aldehydes. Said method consists of continuously dehydrating fatty alcohols in the presence of oxidic copper/zinc catalysts, at temperatures ranging between 200 and 280 °C and pressures ranging between 10 mbar and 1 bar.
摘要翻译： 本发明涉及一种生产醛的方法。 所述方法包括在氧化铜/锌催化剂存在下，在200-280℃的温度和10-1bar的压力下连续脱水脂肪醇。
-
公开(公告)号：EP1212272A1
公开(公告)日：2002-06-12
申请号：EP00964140.8
申请日：2000-09-08
发明人： HECK, Stephan , FRIESENHAGEN, Lothar , KLEIN, Norbert , MARKERT, Thomas , PELZER, Gerrit , SCHNEIDER, Markus
IPC分类号： C07C45/74 , C07C47/225 , C07C29/141 , C07C33/12
CPC分类号： C07C45/74 , C07C29/141 , C07C2601/10 , C07C47/225 , C07C33/12
摘要： The invention relates to a method for producing alkyl-substituted butenols of the general formula (I): R1-CH2-CH=CR2-CH2OH, wherein R1 represents a saturated or olefinically unsaturated alkyl or cycloalkyl group with 4 to 16 carbon atoms that can be optionally substituted by an alkyl, cycloalkyl, aryl or alkaryl group with the proviso that said substituent has a maximum of 12 carbon atoms and R2 represents hydrogen or an alkyl group with 1 to 6 carbon atoms. The inventive butenols can be obtained in high yields and high purity by reacting the aldehydes of formula (II) R1-CH2-CHO, wherein R1 has the same meaning as in formula (I), with the corresponding lower aldehydes and then reducing the unsaturated aldehydes obtained if (i) the aldol condensation is carried out in an inert organic solvent and (ii) the unsaturated aldehydes are reduced in the presence of optionally calcined copper-zinc. The reduction in step (ii) is carried out in a continuous and isothermal process and at temperatures ranging from 45 - 60 °C and at a hydrogen pressure in the range of from 1 to 300 bar.
摘要翻译： 具有式（I）的烷基取代的丁烯醇：<？in-line-formula description =“In-line Formulas”end =“lead”？> R 1 -CH 2 ？> OH OH OH <<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>> 其中R 1是具有4至16个碳原子的饱和或烯属不饱和的烷基或环烷基，并且其中R 1任选被烷基，环烷基，芳基或烷芳基取代 具有多达12个碳原子; R 2是氢或具有1至约6个碳原子的烷基，其方法包括：（1）使式（II）的醛： 公式描述=“在线公式”end =“lead”？> R <1> -CH 2 -CHO（II）<？in-line-formula description =“ 其中R 1具有与式（I）中相同的含义，其中相应的低级醛在惰性有机溶剂中形成不饱和醛; （2）在约45至约60℃的温度和1至约300巴的氢气压力的等温条件下，将任选煅烧的铜/锌催化剂与不饱和醛连续接触。
-
公开(公告)号：EP1432781A2
公开(公告)日：2004-06-30
申请号：EP02797601.8
申请日：2002-08-21
发明人： PELZER, Gerrit , ZANDER, Lars , RUIGK, Ulrich , FRIESENHAGEN, Lothar , GUTSCHE, Bernhard , KLEIN, Norbert , MROZEK, Ingomar , GRITZ, Egbert , JOSTEN, Horst , KUHR, Wilhelm
摘要： The invention relates to a method for hardening unsaturated fatty substances in the presence of transition metal catalysts. Said method is characterised in that the saturation of the double bonds is carried out at pressures of between 100 and 300 bar.
-
公开(公告)号：EP1189857B1
公开(公告)日：2004-05-26
申请号：EP00935215.4
申请日：2000-06-16
发明人： WESTFECHTEL, Alfred , DOWNING, Tom , BLEWETT, Bill , KENNEDY, Steve , HÜBNER, Norbert , FRIESENHAGEN, Lothar , PELZER, Gerrit , KLEIN, Norbert , BEHLER, Ansgar
IPC分类号： C07C29/00
CPC分类号： A61K8/342 , A61K47/10 , A61Q19/00 , C07C29/149 , C11D3/2031 , C07C33/035 , C07C33/02
摘要： The invention relates to branched, largely unsaturated fatty alcohols that are obtained by (a) dimerizing unsaturated fatty acids with 16 to 22 carbon atoms in a known-manner, (b) separating the monomer fraction obtained during the dimerization, (c) converting the branched, largely unsaturated fatty acids that are contained in this fraction into the corresponding fatty acid methyl esters and (d) hydrogenating the branched, largely unsaturated fatty acid methyl esters in such a way as to obtain the double bonds.
-
-
-
搜索结果
4 条记录 (耗时 0.011 秒)
