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1、摘要MPV(Meerwein-Ponndorf-Verley)反应是在温和的条件下以醇为氢源,对羰基的C=O双键进行高效选择加氢还原的反应,在精细化工中具有广泛的用途.利用分子筛催化剂,可以实现醛,酮类化合物MPV反应合成醇.4-叔丁基环己醇是香料,医药和农药重要的中间体,应用十分广泛.本课题主要进行分子筛催化剂的制备并利用该催化剂通过MPV反应催化合成4-叔丁基环己醇的研究.以产物的收率和选择性作为考察指标,采用单因素多水平方法,研究了催化剂的活性以及催化剂用量,原料配比,反应温度,反应时间,催化剂重复利用等因素对实验的影响,确定了最适宜的
2、工艺条件.产物通过GC-MS进行定性分析,通过GC进行定量分析.在优化条件下,H-BEA催化剂催化4-叔丁基环己酮的转化率达53.46%,产物中4-叔丁基环己醇的选择性大于90%.关键词:4-叔丁基环己醇MPV反应分子筛催化剂关键词AbstractMPV(Meerwein-Ponndorf-Verley)reactioncanbeappliedtohighlyselectivehydrogenationofcarbonylcompoundinthemildnessconditionsbyusingalcoholashydrogensource
3、s.Itprovidesawiderangeofapplicationsforthefieldoffinechemicalindustry.Byusingtheselectivityofmolecularsievecatalyst,theproblemofMPVreactionforcarbonylcompoundsiseasytosynthesizealcohol.4-tert-butylcyclohexanolisanimportantintermediateofspices,medicineandpesticide,anditsappl
4、icationisveryvast.Inpresentwork,thesynthesisandmodificationofmolecularsievecatalystandthesynthesisof4-tert-butylcyclohexanolwith4-tert-butylcyclohexaoneoverabovecatalystsaccordingtoMPVreactionwereinvestigated.Byemployingthemethodofsingle-factorandmulti-levels,theyieldof4-te
5、rt-butylcyclohexanolasanindex,theeffectsofreactantratio,reactiontemperature,catalystactivityandothersfactorssuchascatalystloadings,reactiontime,catalystlifewasexaminedtogivetheopitimumtechnologicalconditions.TheandresultantswasidentifiedbyGC-MSandanalyzedbyGC.Theconversiono
6、f4-tert-butylcyclohexanonewas53.46%andtheselectivityfor4-tert-butylcyclohexanolwasmorethan90%overH-BEAunderthepreferableconditions.Keyword:4-tert-butylcyclohexanolMPVreactionmolecularsievecatalyst目录摘要..........................................................................
7、..............................................IAbstract......................................................................................................................II目录.................................................................................................
8、....................III1绪论........................................................
