Through the combined use of computational (density functional theory) and experimental studies, a new [Rh(CO)2Cl]2 catalyzed two-component [5+2+1] cycloaddition of ene-vinylcyclopropanes and CO for the synthesis of fused bicyclic cyclooctenones has been designed and experimentally realized. The key point behind this design is to turn a disfavored reductive elimination of (sp3)C−Rh−C(sp3) to an easier
通过计算(密度泛函理论)和实验研究的结合,一种新的 [Rh(CO)2Cl]2 催化烯-乙烯基环丙烷和 CO 的双组分 [5+2+1] 环加成反应合成稠合双环环辛酮已经设计并实验实现。这种设计背后的关键点是通过引入 CO 将 (sp3)C-Rh-C(sp3) 的不利还原消除转变为更容易迁移的 (sp3)C-Rh-CO-C(sp3) 还原消除这些反应对于具有各种系链类型和取代基的底物以良好的产率进行,为双环环辛烯酮的构建提供了灵活、方便、高效和立体控制的方法。
Rhodium-Catalyzed [5+2] Cycloaddition
Reactions in Water
作者:Paul Wender、Jennifer Love、Travis Williams
DOI:10.1055/s-2003-40357
日期:——
water-soluble rhodium catalyst is reported along with its ability to effect [5+2] cycloaddition reactions in water. This water-soluble catalyst is recyclable, is readily separated from the or ganic product, and allows one to avoid or minimize the use of or ganic solvents, the major waste stream of most organic reactions.