A facile and direct approach to N1-substituted 2,3-dihydroquinazolin-4(1H)-ones has been developed via Pd(II)-catalyzed one-pot cascade annulation of N-substituted anilines with CO, NH4OAc and aldehydes, and it features an intrinsic directing strategy, cheap and easily obtainable raw materials, low cost, high step economy and efficiency, broad substrate scope and good product diversity. This protocol
通过Pd( II )催化N-取代
苯胺与CO、NH 4
OAc和该方法具有内在的导向策略、原料廉价易得、成本低、步骤经济性和效率高、底物范围广、产品多样性好等特点。该方案已成功应用于格格唑啉
酮 A 的合成和克级实验。根据对照实验和文献,提出了反应机理。