Integrative Pericyclic Cascade: An Atom Economic, Multi C−C Bond-Forming Strategy for the Construction of Molecular Complexity
作者:David Tejedor、Samuel Delgado-Hernández、Jesús Peyrac、Javier González-Platas、Fernando García-Tellado
DOI:10.1002/chem.201702667
日期:2017.7.26
accessible tertiary propargyl vinyl ethers as substrates and imidazole as a catalyst to form up to two new rings, three new C−C bonds, six stereogenic centers and one transannular oxo‐bridge. The manifold is efficient, scalable and instrumentally simple to perform and entails a propargyl Claisen rearrangement–[1,3]H shift, an oxa‐6π‐electrocyclization, and an intramolecular Diels–Alder reaction.
开发了全周流形歧管,用于构建拓扑多样,结构复杂和天然产物样的多环化学型。该歧管使用易于获得的叔炔丙基乙烯基醚作为底物,并使用咪唑作为催化剂,以形成多达两个新的环,三个新的C-C键,六个立体异构中心和一个跨环氧基桥。歧管高效,可扩展且易于执行,并且需要进行炔丙基克莱森重排– [1,3] H移位,氧杂-6π-电环化以及分子内狄尔斯-阿尔德反应。