Rh<sub>2</sub>(OAc)<sub>4</sub>-AgOTf Cooperative Catalysis in Cyclization/Three-Component Reactions for Concise Synthesis of 1,2-Dihydroisoquinolines
作者:Zhenqiu Guo、Mei Cai、Jun Jiang、Liping Yang、Wenhao Hu
DOI:10.1021/ol902409u
日期:2010.2.19
Dirhodium acetate and silver triflate cooperatively catalyzed tandem cyclization/three-component reactions of 2-alkynylarylaldimines with diazo compounds and water or alcohols are reported to afford 1,2-dihydroisoquinolines bearing α-hydroxyl-β-amino carboxylate skeleton in high yield.
Nitrogenated Azaphilone Derivatives through a Silver-Catalysed Reaction of Imines from <i>ortho</i>
-Alkynylbenzaldehydes
作者:Patricia Fernández、Francisco J. Fañanás、Félix Rodríguez
DOI:10.1002/chem.201700170
日期:2017.3.2
multicomponent silver‐catalysed reaction that allows the transformation of simple iminesderivedfrom ortho‐alkynylbenzaldehydes into complex nitrogenated azaphilone‐type molecules in a straightforward way. This atom‐economical process is high yielding, technically very simple and proceeds through a series of cascade processes that imply cycloisomerisation and formal cross‐coupling reactions. This conceptually
One-pot synthesis of trifluoromethylated phthalans via intramolecular cyclization from 2-alkynylbenzaldehydes
作者:Lijun Xu、Haizhen Jiang、Jian Hao、Gang Zhao
DOI:10.1016/j.tet.2014.04.072
日期:2014.7
Regioselective synthesis of functionalized dihydroisoquinolines from o-alkynylarylaldimines via the Reformatsky reaction
作者:Tohasib Yusub Chaudhari、Urvashi Urvashi、Sandeep K. Ginotra、Pooja Yadav、Gulshan Kumar、Vibha Tandon
DOI:10.1039/c6ob01790h
日期:——
of functionalized 1,2-dihydroisoquinolines from o-alkynylarylaldimines via the Reformatskyreaction without the aid of an external Lewis acid has been described. The chemistry involves the dual role of the Reformatsky reagent which has been generated in situ in the reaction. We propose that one molecule of the Reformatsky reagent is being utilised for the activation of alkynes, whereas the second molecule
The Cu(OAc)2-catalyzed tandemreaction of 2-(1-alkynyl)benzaldimines with water for the synthesis of isoquinolin-1(2H)-ones was developed. Moreover, 4-halogen-substituted isoquinolin-1(2H)-ones were obtained in good yields simply by including N-halosuccinimides (NXS: X = Cl, Br, I) in the reaction system. Mechanistic studies indicated that the reactions are probably initiated by highly regioselective