Herein, we report a urea derived directing group for mild and highly selective oxidative CâH bond olefination. Subsequent intramolecular Michael addition affords dihydroquinazolinones in good yields. The NâO bond of the urea substrate exhibits superior oxidative behaviour compared to a variety of other external oxidants.
本文报道了一种由
尿素衍生的导向基团,用于温和且高度选择性的氧化C–H键烯化反应。随后的分子内Michael加成反应以良好的产率得到二氢
喹唑啉酮。
尿素底物中的N–O键表现出优于多种其他外部氧化剂的氧化性能。