Tetraalkylammonium and 1,3-Dialkylimidazolium Salts with Fluorinated Anions as Recoverable Phase-Transfer Catalysts in Solid Base-Promoted Cross-Aldol Condensations
作者:Galina V. Kryshtal、Galina M. Zhdankina、Sergei G. Zlotin
DOI:10.1002/ejoc.200400880
日期:2005.7
Tetraalkylammonium and 1,3-dialkylimidazolium tetrafluoroborates and hexafluorophosphates were employed for the first time as recoverable phase-transfer catalysts in multiphase reactions of CH-acids, in particular in solid base-promoted cross-aldol condensations. The catalysts retained their catalytic activity over several reaction cycles. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany
四烷基铵和 1,3-二烷基咪唑鎓四氟硼酸盐和六氟磷酸盐首次在 CH 酸的多相反应中用作可回收的相转移催化剂,特别是在固体碱促进的交叉羟醛缩合中。催化剂在几个反应循环中保持其催化活性。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)