A three‐component process for the synthesis of 2,3‐dihydroquinazolin‐4(1
<i>H</i>
)‐one derivatives using nanosized nickel aluminate spinel crystals as highly efficient catalysts
作者:Javad Safaei‐Ghomi、Raheleh Teymuri
DOI:10.1002/jccs.201800450
日期:2019.11
catalyzed the synthesis of 2,3‐dihydroquinazolin‐4(1H)‐one derivatives via a one‐pot, three‐component condensation reaction of aromatic aldehydes, isatoic anhydride, and ammonium acetate or primary aromaticamine under microwave irradiation. By far, the most obvious advantages of the offered process are efficiency and recyclability of the catalyst as well as a significantly shorter reaction time.
NiAl 2 O 4尖晶石纳米晶体被合成为介孔催化剂,并使用傅立叶变换红外光谱(FT-IR),X射线衍射图谱(XRD),扫描电子显微镜(SEM)和能量分散X射线对其进行了全面表征光谱学(EDS)。这些纳米晶体在微波辐射下通过芳族醛,isatoic酸酐和乙酸铵或伯芳族胺的一锅三组分缩合反应催化了2,3-二氢喹唑啉-4(1 H)-one衍生物的合成。到目前为止,所提供方法的最明显优点是催化剂的效率和可回收性以及明显缩短的反应时间。