期刊

Chemical Communications

标题

Metal-free naphthannulation reactions of yne-allenone esters for accessing polycyclic aromatic hydrocarbons

作者

Hong-Kai Sha, Ting Xu,  Feng Liu, Bu-Zheng Tang, Wen-Juan Hao, Shu-Jiang Tu and  Bo Jiang

摘要

The first metal-free base-promoted naphthannulation reactions of yne-allenone esters were established for the direct assembly of a wide range of polycyclic aromatic hydrocarbons with generally good yields. The naphthannulation reaction of yne-allenone esters with β-ketonitriles provided new phenanthrene-1-carboxylates via a base-mediated [2+2] cycloaddition/ring expansion sequence, whereas hitherto unreported tetracyclic tetrahydrotetraphene-7-carboxylates were obtained with good yield via a sequential double annulation cascade of yne-allenone esters with dimedone as a diphilic reagent.

原文链接

https://pubs.rsc.org/en/content/articlelanding/2018/cc/c8cc05018j