Amine‐functionalized nano‐NaY zeolite for the synthesis of
<i>N</i>
‐acetyl pyrazoles and dihydropyrimidines
作者:Raheleh Razavian Mofrad、Hassan Kabirifard、Mahmood Tajbakhsh、Ghasem Firouzzadeh Pasha
DOI:10.1002/aoc.6383
日期:2021.11
An efficient base-catalyzed synthesis of dihydropyrimidines and N-acetyl pyrazoles is reported using 1-(2-aminoethyl)piperazine-modified nano-NaY zeolite (ZeSi–AP) under mild and green conditions. The structure of the catalyst was identified by using FT-IR, XRD, TGA, DTA, DLS, SEM, TEM, and elemental analyses. This heterogeneous catalyst has many benefits, such as a simple work-up procedure, high product
据报道,在温和和绿色条件下,使用 1-(2-氨基乙基)哌嗪改性的纳米 NaY 沸石(ZeSi-AP)有效地碱催化合成二氢嘧啶和N-乙酰基吡唑。通过使用FT-IR、XRD、TGA、DTA、DLS、SEM、TEM和元素分析确定了催化剂的结构。这种非均相催化剂具有许多优点,例如后处理程序简单,产品收率高,并且易于再生和重复使用至少四个循环而不会失去其活性。