已经描述了一种有效的合成路线,用于将1 $ H $-吲哚,1 $ H $-苯并咪唑和1 $ H $-苯并三唑进行烷基化。该方法的特点是在无金属条件下通过酮基曼尼希碱原位生成的烯酮将杂芳烃烷基化。通过这些杂芳族化合物与各种酮基曼尼希碱的K10催化烷基化反应,已经合成了一系列烷基化杂芳族化合物。该烷基化方法的优点是对环境无害的K10催化剂,水介导的温和反应条件以及烷基化产物的有效合成。
Mannich reaction of ketones using 1, 3-dioxolane instead of formaldehyde, paraformaldehyde, or 1, 3, 5-trioxane afforded the corresponding Mannich bases in high yields. Under the same conditions the aminomethylation of aromatics did not proceed but the intramolecular aminomethylation, like a Pictet-Spengler type reaction, proceeded smoothly.
Synthesis of Mannich Bases by Two Different Methods and Evaluation of their Acetylcholine Esterase and Carbonic Anhydrase Inhibitory Activities
作者:Halise I. Gul、Alkan Demirtas、Gokbay Ucar、Parham Taslimi、|lhami Gulcin
DOI:10.2174/1570180814666161128120612
日期:2017.4.6
biological activities including carbonic anhydrase (CA) inhibitory and acetylcholineesterase inhibitory (AChE) activities. Objective: It was aimed to synthesize Mannich bases, 1-aryl-3-(morpholin-4-yl/piperidin-1-yl)-1- propanone hydrochloride, by microwave irradiation and conventional heating methods to compare the methods in terms of reaction times and yields and to investigate their inhibitory effects on