Synthesis of Flavanone and Quinazolinone Derivatives from the Ruthenium-Catalyzed Deaminative Coupling Reaction of 2′-Hydroxyaryl Ketones and 2-Aminobenzamides with Simple Amines
作者:Krishna Gnyawali、Pandula T. Kirinde Arachchige、Chae S. Yi
DOI:10.1021/acs.orglett.1c03870
日期:2022.1.14
deaminative coupling reaction of 2′-hydroxyaryl ketones with simple amines to form 3-substituted flavanone products. The analogous deaminative coupling reaction of 2-aminobenzamides with branched amines directly formed 3,3-disubstituted quinazolinone products. The catalytic method efficiently installs synthetically useful flavanone and quinazolinone core structures without employing any reactive reagents.
发现阳离子 Ru-H 配合物 [(C 6 H 6 )(PCy 3 )(CO)RuH] + BF 4 - ( 1 ) 与 3,4,5,6-四氯-1,2-苯醌 ( L1 )作为 2'-羟基芳基酮与简单胺的脱氨基偶联反应生成 3-取代黄烷酮产物的高效催化剂。2-氨基苯甲酰胺与支链胺的类似脱氨基偶联反应直接形成3,3-二取代喹唑啉酮产物。该催化方法有效地安装了合成有用的黄烷酮和喹唑啉酮核心结构,而无需使用任何反应性试剂。