An Approach to <i>Lauroxanes</i> by Iterative Use of Co<sub>2</sub>(CO)<sub>6</sub>-Acetylenic Complexes. A Formal Synthesis of (+)-Laurencin
作者:Nuria Ortega、Victor S. Martín、Tomás Martín
DOI:10.1021/jo101566x
日期:2010.10.1
Nicholas reaction to form unsaturated branched linear ethers, a ring closing metathesis to obtain the cobalt complex cyclic ethers, and an isomerization promoted by montmorillonite K-10. A short synthesis of cyclic ethers of seven-, eight-, and nine-memberedrings is described. Additionally, the methodology is exemplified by the formal synthesis of (+)-laurencin, a red algae metabolite.