Synthesis of 4-Quinolones via Cyclocondensation of Substituted ortho-Amidoacetophenones: A Refit to the Camps Cyclization by Applying Trimethylsilyl Trifluoromethanesulfonate/Triethylamine
Transition-Metal-Free Indirect Friedländer Synthesis of Quinolines from Alcohols
作者:Ricardo Martínez、Diego J. Ramón、Miguel Yus
DOI:10.1021/jo801678n
日期:2008.12.19
The synthesis of polysubstituted quinolines can be easily and greenly accomplished by the direct reaction between the corresponding 2-aminobenzylic alcohol derivative and either a ketone or alcohol in the presence of a base, without any transition-metal catalyst.
RuCl2(dmso)4 Catalyzes the Solvent-Free Indirect Friedländer Synthesis of Polysubstituted Quinolines from Alcohols
作者:Ricardo Martínez、Diego J. Ramón、Miguel Yus
DOI:10.1002/ejoc.200600945
日期:2007.4
The first synthesis of polysubstituted quinoline derivatives from aromatic or aliphatic alcohols with RuCl2(dmso)4 as catalyst under solvent-free conditions is described. The reaction involves the in situ oxidation of alcohols to the corresponding carbonyl compounds through a hydrogen-transfer, followed by a Friedlander annulation process. The whole process is a mild, efficient, selective, and high-yielding
Electrophilic Cyclization of 2-Aminophenylprop-1-yn-3-ols into 3-Iodo-6-(aryldiazenyl)quinolines by Using a One-Pot Azo-Coupling and Iodocyclization Sequence
作者:Srinivasarao Yaragorla、Abhishek Pareek
DOI:10.1002/ejoc.201800248
日期:2018.4.30
We have developed a one‐pot synthesis of 3‐aryldiazenyl‐3‐iodoquinolines by carrying out sequential azo‐coupling, iodocyclization, and aromatization reactions. 2‐Aminoaryl propargyl alcohols, aryldiazonium salts, and molecular iodine were used to prepare these quinolone derivatives. This study was also extended to the preparation of 6‐aryldiazenylquinolines as well as simple quinolones.