本文报道了一种简单的制备4-取代的噻吩/呋喃并[2,3- c ]喹啉化合物的方法。通过在适当的硼酸和2-碘苯胺之间使用Suzuki偶联,然后在催化量的FeCl 3存在下与多种醛反应,可以合成这些化合物。还制备了萘啶类似物以证明所开发方法的功效。对分子进行了进一步的抗结核活性筛选,其中带有融合的呋喃并[2,3- c ] [1,8]萘啶骨架的化合物显示出最高的活性。对于4-(4-甲氧基苯基)呋喃[2,3- c],获得的最佳MIC(最小抑菌浓度)值为5.6μmol] [1,8]萘啶,被发现优于现有的一线抗结核药物乙胺丁醇(7.6μmol)。
Synthesis of Furo- and Thienoquinolines by Using an Amine Oxidase-Inspired Catalyst
作者:Biplab Maji、Pradip Ramdas Thorve
DOI:10.1055/a-2103-9629
日期:2023.12
We report the regioselective synthesis of furo- and thienoquinolines by using an amine oxidase-inspired catalyst (1,10-phenanthroline-5,6-dione) and an abundant Lewis acid (FeCl3) as a co-catalyst. The aerobic amine dehydrogenation proceeds under mild conditions and produces the quinolines in highyields. Mechanistic studies helped to identify the possible reaction intermediates and the specific role
Palladium-Catalyzed Intramolecular C–H Activation/C–C Bond Formation: A Straightforward Synthesis of Phenanthridines
作者:Jinsong Peng、Tonghui Chen、Chunxia Chen、Bin Li
DOI:10.1021/jo2017108
日期:2011.11.18
The palladium-catalyzed intramolecular C-H activation/C-C cross-coupling has been developed for a straightforward and efficient synthesis of phenanthridines. With Pd(OAc)(2) (4 mol %) as the catalyst, PCy3 (8 mol %) as the ligand, and Cs2CO3 as the base, this protocol was applied to synthesize a small library of phenanthridine derivatives in good yields in THF.