新洋茉莉醛的合成研究.pdf

1、天津大學(xué)碩士學(xué)位論文新洋茉莉醛的合成研究姓名：黃宗涼申請學(xué)位級別：碩士專業(yè)：化學(xué)工藝指導(dǎo)教師：馬新賓2002.1.1天津入學(xué)壩i‘學(xué)位論文ABSTRACTInthispaperhelionalwaspreparedbytwostepsThefirststepwastheClaisen—SchmidtcondensationreactionofheliotropinandpropanaloncatalystKF／Alz03toproduc

2、e2methyl一3一(3，4一methylenedioxyphenyl)acraldehydeThesecondstepwastheselectivehydrogenationreactionof2methyl一3一(3，4methylenedioxyphenyl)acraldehydeonthecatalystP一2一Ni—CutoproducehelionalThecatalystsofKF／A1203andP2Ni—Cuwere

3、characterizedIncondensationreaction，KF／A1203wasselectedasasuitablecatalystbycatalystevaluationOptimumtechnologicalconditionshavebeendeterminedbystatisticalexperimentTheyieldofparallelexperimentwas802％underthereactioncond

4、itionofreactiontemperatureof60C～70‘C，03molheliotropinand042molpropanalasreactants，14gKF／A1203catalyst，reactiontime4hInselectivehydrogenationreaction，P2Ni—CuwasselectedassuitablecatalystbycatalystevaluationOptimumtechnolo

5、gicalconditionshavebeendeterminedbystatisticalexperimentUndertheconditionofreactiontemperatureof25℃～30℃，reactionpressureof005MPa～O10MPa，10g2methyl3(3，4一methylenedioxyphenyl)acraldehydeasreactant，stirringspeedof600r／min，0

6、3gP2Ni—Cucatalyst，theyieldofparallelexperimentwas83％Thetotalyieldofhelionalintheprocessofpurificationisover85％Thetotalyieldofhelionalinthisexperimentis569％TheexistenceofF‘a(chǎn)nd[Al—O’jonKF／Ah03cata]ystandtheirsynergeticeffe

7、ctmakeKF／A1203agoodcatalystforClaisen—SchmidtcondensationreactionThesynergeticeffectofCuandNimakeP2NiCusuitedforselectivehydrogenationreactionofcarbon—carbondoublebondinoB—unsaturatedaldehydeKeywords：Claisen’Schmidtconde