α,β-Functionalization of saturated ketones with anthranils via Cu-catalyzed sequential dehydrogenation/aza-Michael addition/annulation cascade reactions in one-pot
An efficient method to access functionalized quinolines from the readily available saturatedketones and anthranils have been explored. This one-pot cascade reaction involves the in situ generation of α,β-unsaturated ketones by the copper catalysed dehydrogenation of saturatedketones followed by the aza-Michael addition of anthranils and subsequent annulation.
Transition-Metal-Free Quinoline Synthesis from Acetophenones and Anthranils via Sequential One-Carbon Homologation/Conjugate Addition/Annulation Cascade
作者:Sandip Balasaheb Wakade、Dipak Kumar Tiwari、Pothapragada S. K. Prabhakar Ganesh、Mandalaparthi Phanindrudu、Pravin R. Likhar、Dharmendra Kumar Tiwari
DOI:10.1021/acs.orglett.7b02429
日期:2017.9.15
the construction of functionalized quinolines from readily available acetophenones and anthranils is reported. This one-pot reaction cascade involves in situ generation of α,β-unsaturated ketones from the acetophenone via one-carbon homologation by DMSO followed by the aza-Michael addition of anthranils and subsequent annulation. DMSO acted in this reaction not only as solvent but also as one carbon source
An efficient 3-acylquinoline synthesis from acetophenones and anthranil<i>via</i>C(sp<sup>3</sup>)–H bond activation mediated by Selectfluor
作者:Yejun Gao、Robert C. Hider、Yongmin Ma
DOI:10.1039/c9ra01481k
日期:——
method for the synthesis of 3-functionalized quinolines from commercially available acetophenones and anthranil has been described. Selectfluor propels the C(sp3)–H bond activation of the acetophenones and aza-Michael addition of anthranil resulting in annulated 3-acylquinolines in moderate to high yields. DMSO acts not only as a solvent but also as a one carbon donor in the reaction.
作者:David C Harrowven、Benjamin J Sutton、Steven Coulton
DOI:10.1016/s0040-4020(02)00295-8
日期:2002.4
The paper is concerned with intramolecularradicaladditions to quinolines. Radicaladditions to C-2, C-3 and C-4 of a quinoline have all been shown to proceed under neutral conditions. In each case formation of heteroaromatic products, rather than dihydroquinolines, was observed (implicating the so called oxidative tin hydride pathway).
Nitrogen-containing heterocyclic compound and salt thereof, and a fungicide for agricultural and horticultural use
申请人:Mitani Akira
公开号:US09062024B2
公开(公告)日:2015-06-23
The present invention provides a nitrogen-containing heterocyclic compound represented by formula (I) and salt thereof, which is useful as an active ingredient of a fungicide for agricultural and horticultural use, having an assured effect and being safely usable.