An efficient method for highly stereo‐ and regioselective C‐3 alkenylation of indolizines and pyrrolo[1,2‐a]quinolones through RuII catalysis was developed. The alkenyl indolizines obtained in excellent to moderate yields. The synthetic utility of the products demonstrated through selective hydrogenation reactions.
通过Ru II催化,开发了一种高效的方法,用于吲哚嗪和吡咯并[1,2- a ]喹诺酮的立体和区域选择性C-3烯基化反应。以优异至中等的产率获得烯基吲哚嗪。通过选择性氢化反应证明了产物的合成效用。
Chiral Phosphoric Acid-Catalyzed Asymmetric Friedel–Crafts Addition of Indolizine to Cyclic <i>N</i>-Sulfonyl Imine
作者:Parbat Subba、Milon M. Sadhu、Vinod K. Singh
DOI:10.1021/acs.joc.3c01686
日期:2023.10.20
efficient chiral phosphoric acid-catalyzed enantioselective Friedel–Crafts addition of indolizine to cyclic N-sulfonyl imine has been established. The newly developed protocol, which probably proceeds via a monoactivation reaction pathway, allows the access of enantioenriched sulfonamide functionalized indolizines with excellent yields (up to 99%) and enantioselectivities (up to 99%). Moreover, the synthetic
Selective Hydrogenation of Indolizines: An Expeditious Approach To Derive Tetrahydroindolizines and Indolizidines from Morita–Baylis–Hillman Adducts
作者:Bruno V. M. Teodoro、José Tiago M. Correia、Fernando Coelho
DOI:10.1021/jo502471q
日期:2015.3.6
In this study, we describe the hydrogenation of indolizines derived from Morita-Baylis-Hillman adducts. We demonstrate that functionalized tetrahydroindolizines and indolizidines can be prepared selectively, at low pressure, by simply adjusting the acidity of the medium. Using this simple and straightforward strategy, substituted tetrahydroindolizines and indolizidines were obtained diastereoselectively in high yield.