for the synthesis of various multi-substituted β-keto amide derivatives based on a simple and readily available dioxinone scaffold was developed. The process involves: (1) nucleophilic addition of the scaffold to an aldehyde, and a subsequent one-pot dehydration; (2) palladium-catalysed cross-coupling of the scaffold with either an arylboronicacid pinacol ester, or CO and an aliphatic amine; and (3)
开发了一种基于简单易得的二恶酮支架合成各种多取代 β-酮酰胺衍生物的顺序多样化方法。该过程包括:(1)支架与醛的亲核加成,以及随后的一锅脱水;(2) 钯催化的支架与芳基硼酸频哪醇酯或 CO 和脂肪胺的交叉偶联;(3) 脂族胺或芳基胺的亲核加成,或异氰酸酯/异硫氰酸酯的杂狄尔斯-阿尔德反应,与从二恶酮支架原位生成的酰基乙烯酮。