Facile Synthesis of 2H-Benzo[h]Chromenes via an Arylamine-Catalyzed Mannich Cyclization Cascade Reaction
作者:Yueteng Zhang、Peng Ji、Xiang Meng、Feng Gao、Fanxun Zeng、Wei Wang
DOI:10.3390/molecules26123617
日期:——
Mannich-cyclization cascade reaction was developed for facilesynthesis of substituted 2H-benzo[h]chromenes. The notable feature of the process included the efficient generation of ortho-quinone methides (o-QMs) catalyzed by a simple aniline. The mild reaction conditions allowed for a broad spectrum of 1- and 2-naphthols and trans-cinnamaldehydes to engage in the cascade sequence with high efficiency.
开发了一种简单的芳胺催化曼尼希环化级联反应,用于轻松合成取代的 2 H-苯并[ h ]色烯。该过程的显着特点包括在简单的苯胺催化下有效生成邻醌甲基化物( o -QM)。温和的反应条件允许广谱的1-和2-萘酚以及反式肉桂醛高效地参与级联序列。