A mild and efficient route for the synthesis of quinolines and polycyclic quinolines utilizing Gadolinium triflate (Gd(OTf)3) as a novel catalyst via Friedländer annulation in ionic liquid 1‐n‐butyl‐3‐methyl‐imidazolium hexafluorophosphate [Bmim][PF6] under mild conditions was described.
Brønsted Acid Catalyzed Addition of Enamides to <i>ortho</i>
-Quinone Methide Imines-An Efficient and Highly Enantioselective Synthesis of Chiral Tetrahydroacridines
The direct and highly enantioselective synthesis of tetrahydroacridines was achieved through the phosphoric acid catalyzed addition of enamides to in situ generated ortho‐quinone methide imines and subsequent elimination. This novel one‐step process constitutes a very efficient, elegant, and selective syntheticapproach to valuable N‐heterocycles with a 1,4‐dihydroquinoline motif. By subsequent highly
作者:Debabrat Pathak、Bikash Kumar Kalita、Ashish Sarmah、Himanshu Sharma、Bidisha Bora、Tridib K. Goswami、Bipul Sarma
DOI:10.1039/d3gc02172f
日期:——
A first-of-its-kind one-pot green and affordable gram-scale synthetic route to quinoline scaffolds is reported from readily available alcohols over metal-free N-rich hollow spherical porous organic polymer (MOP-TA) via H2 evolution.
本研究首次报道了通过 H2 演化,在无金属富含 N 的中空球形多孔有机聚合物 (MOP-TA) 上,以现成的醇为原料,一步法合成喹啉支架的绿色且经济的克级规模合成路线。
The First Cerium (IV) Ammonium Nitrate (CAN)-Catalyzed Friedländer Synthesis of Quinolines in Ionic Liquid
作者:Rei-Sheu Hou、Ling-Ching Chen、Huey-Min Wang、Iou-Jiun Kang、Hau-Dung Du
DOI:10.3987/com-09-11865
日期:——
A mild and efficient route for the synthesis of quinolines and polycyclic quinolines utilizing cerium (IV) ammonium nitrate (CAN) as a novel catalyst via Friedlander annulation in ionic liquid 1-n-butyl-3-methylimidazolium hexafluorophosphate [Bmim][PF6] under mild conditions was described.
An Efficient Protocol for the Friedländer Quinoline Synthesis Using the Lewis Acidic Ionic Liquid Choline Chloride•2ZnCl2
Lewis acidic ionic liquid choline chloride center dot 2ZnCl(2) is shown to be for the first time an excellent solvent and efficient catalyst for the synthesis of quinolines via Friedlander annulation under mild conditions.