An efficient and unprecedented strategy for the synthesis of 1,4-enediones from saturated ketones has been developed via palladium-catalyzed oxidative dehydrogenation. The protocol employs molecular oxygen as the sole oxidant and represents an atom- and step-economic process. The approach showed broad substrate scope, good functional group tolerance, and complete E-stereoselectivity. The reaction mechanism
通过
钯催化的氧化脱氢,已经开发出一种有效且空前的从饱和酮合成1,4-二烯酮的策略。该协议采用分子氧作为唯一的氧化剂,代表了原子经济和逐步经济的过程。该方法显示出广泛的底物范围,良好的官能团耐受性和完全的E-立体选择性。通过
氘标记实验和中间实验研究了反应机理。