引用本文:
马新宾, 黄宗凉, 那平, 李良龙, 余延栋. KF/Al2O3催化合成2-甲基-3-(3,4-亚甲二氧基苯基)丙烯醛[J]. 应用化学,
2002, 19(10): 989-993.
Citation: MA Xin-Bin, HUANG Zong-Liang, NA Ping, LI Liang-Long, YU Yan-Dong. Catalytic Synthesis of 2-Methyl-3-(3,4-methylenedioxyphenyl)acraldehyde over KF/Al2O3[J]. Chinese Journal of Applied Chemistry, 2002, 19(10): 989-993.
Citation: MA Xin-Bin, HUANG Zong-Liang, NA Ping, LI Liang-Long, YU Yan-Dong. Catalytic Synthesis of 2-Methyl-3-(3,4-methylenedioxyphenyl)acraldehyde over KF/Al2O3[J]. Chinese Journal of Applied Chemistry, 2002, 19(10): 989-993.
KF/Al2O3催化合成2-甲基-3-(3,4-亚甲二氧基苯基)丙烯醛
摘要:
以KF/Al2O3作催化剂,催化洋茉莉醛和丙醛的Claisen-Schmidt缩合反应合成了2-甲基-3-(3,4-亚甲二氧基苯基)丙烯醛,收率超过80%。该催化剂催化性能较其它碱催化剂(如KOH/Al2O3、K2CO3/Al2O3)好。并用BET、XRD、TPD和XPS对KF/Al2O3催化剂进行了表征。结果表明,KF/Al2O3良好的催化性能来自其中的多种活性中心及协同催化作用。
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关键词:
- 甲基(亚甲二氧基苯基)丙烯醛
- / Claisen-Schmidt缩合
- / KF/Al2O3催化剂
- / 洋茉莉醛
English
Catalytic Synthesis of 2-Methyl-3-(3,4-methylenedioxyphenyl)acraldehyde over KF/Al2O3
Abstract:
2-Methyl-3-(3,4-methylenedioxyphenyl)acraldehyde was synthesized through Claisen-Schmidt condensation reaction of the heliotropin and propanal with KF/Al2O3 as a catalyst, in yield over 80%. The catalytic activity of KF/Al2O3 was much higher than that of the common alkali catalysts. The catalyst KF/Al2O3 was characterized by BET, TPD, XRD and XPS. The existence of F- and [Al-O-] on KF/Al2O3 catalyst and their synergetic effects make KF/Al2O3 a good catalyst for Claisen-Schmidt condensation reaction.
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