Zinc-Catalyzed [4+3] Cycloaddition with Concomitant Furan Annulation: Formation of Cyclohepta[<i>b</i>]Furans
作者:Bo Song、Lian-Hua Li、Xian-Rong Song、Yi-Feng Qiu、Mei-Jin Zhong、Ping-Xin Zhou、Yong-Min Liang
DOI:10.1002/chem.201402513
日期:2014.5.12
A convenient zinc‐promoted [4+3] cycloaddition of a carbonyl ene–yne with simple dienes was first achieved. This reaction provided an efficient strategy to prepare various cyclohepta[b]furan rings by cascade cycloadditions. Additionally, a multicomponent reaction of dione, alkynal, and diene was also reported, which exhibited a novel strategy for selective creations of CO bonds and CC bonds.
首先实现了一种简单的锌促进的羰基烯-炔的锌促进的[4 + 3]环加成反应。该反应提供了通过级联环加成反应制备各种环庚[ b ]呋喃环的有效策略。此外,二酮,炔醛,和二烯的多组分反应也有报道,其显示了用于使C选择性创作的新策略 O键和C C键。