作者:Werner Bonrath、Yann Pressel、Jan Schütz、Erich Ferfecki、Klaus-Dieter Topp
DOI:10.1002/cctc.201600867
日期:2016.12.7
The aldol condensations of various aldehydes with ketones in the presence of anionic (basic) ion‐exchange resins have been investigated. Both batch and continuous modes were studied and compared for the reaction of citral (a mixture of geranial and neral) with acetone to give ψ‐ionone. Different reaction conditions were investigated, and the performances of five different ion‐exchange resins were compared
研究了在阴离子(碱性)离子交换树脂存在下各种醛与酮的醛醇缩合反应。研究了间歇模式和连续模式,并比较了柠檬醛(香叶醛和神经醛的混合物)与丙酮反应生成give-紫罗兰酮的反应。研究了不同的反应条件,并比较了五种不同的离子交换树脂的性能。最稳定的树脂可以分批模式使用10个循环,而在连续模式下可以使用1000分钟,而活性或选择性没有明显损失。