AlCl<sub>3</sub>‐Promoted Conia‐Ene‐Related Cyclization of α,ω‐Diethylenic Ketones and 1,2‐ or 1,3‐Hydroalkenylation of Unactivated Cyclopropanes
作者:Julien Coulomb
DOI:10.1002/adsc.202300317
日期:2023.9.5
α,β-Unsaturated enones possessing an unactivated olefin at the ϵ-, ζ- or η-position underwent an aluminum chloride-promoted Conia-ene-related cyclization, affording unsaturated decalones or hexahydroindenones in generally good yields. Cyclopropanes could be used as olefin surrogates in this process, leading to the same bicyclic products in slightly improved efficiency as the result of 1,2- or 1,3-hydroalkenylation
在ε-、δ-或η-位具有未活化烯烃的α,β-不饱和烯酮经历氯化铝促进的Conia-ene相关环化,以通常良好的产率提供不饱和十酮或六氢茚酮。在此过程中,环丙烷可用作烯烃替代物,通过 1,2- 或 1,3- 加氢烯基化反应,产生相同的双环产物,但效率略有提高。该方法提供了获得全系列双环或三环烯酮合成子的途径,其中一些可能用作气味剂或用于生物活性分子的合成。