New and Concise Syntheses of the Bicyclic Oxamazin Core Using an Intramolecular Nitroso Diels–Alder Reaction and Ring-Closing Olefin Metathesis
作者:Kyle D. Watson、Serena Carosso、Marvin J. Miller
DOI:10.1021/ol303305u
日期:2013.1.18
making an unsaturated bicyclic oxamazin core are reported. The first involves the use of an intramolecular Diels–Alder reaction to form both of the fused rings in one step. The second approach incorporates ring-closing olefin metathesis in the final step to form the second fused ring of the core. The scope of the second approach was also expanded further to afford larger ringed bicyclic systems.
本文报道了两种新的、简洁的合成方法,用于制备不饱和双环 oxamazin 核。第一个涉及使用分子内 Diels-Alder 反应在一个步骤中形成两个稠环。第二种方法在最后一步结合闭环烯烃复分解,以形成核心的第二个稠环。第二种方法的范围也进一步扩大,以提供更大的环状双环系统。