Microwave assisted novel one-pot three-component reaction for synthesis of 3-aminoimidazopyridines using molecular iodine
作者:Sumbulunnisan Shareef、Saigal、Mohammad Khizr、Subash C. Sahoo、Md. Musawwer Khan
DOI:10.1016/j.tetlet.2021.153452
日期:2021.11
the three-component reaction of arylglyoxal monohydrates, aromatic amines and 2-aminopyridines. This multicomponent reaction was executed under microwave irradiation in presence of catalytic amount of molecular iodine in ethanol, involving the formation of three new CN bonds via imine intermediate. Environmentally benign catalyst, eco-friendly medium, good yields, short reaction time and purification
通过芳基乙二醛一水合物、芳香胺和 2-氨基吡啶的三组分反应,开发了一种方便、经济且无金属的绿色方案,用于制备 3-氨基咪唑并吡啶。这种多组分反应是在乙醇中催化量的分子碘存在下,在微波辐射下进行的,涉及通过亚胺中间体形成三个新的CN 键。环境友好的催化剂、环保介质、良好的收率、反应时间短和通过简单结晶纯化是该协议的一些显着特点。此外,所提出的方法是可持续的,因为采出水仅作为副产品,避免了有毒催化剂,并且具有绿色化学原理的良好适应性。