The Ruthenium Catalyzed Synthesis of Quinoline Derivatives from Nitroarenes and Aliphatic Alcohols
作者:Yoshihisa Watanabe、Yasushi Tsuji、Jun Shida
DOI:10.1246/bcsj.57.435
日期:1984.2
Nitroarenes are reductively converted into quinoline derivatives with aliphatic alcohols in the presence of a catalytic amount of ruthenium compound at 180 °C. Ruthenium(III) chloride is the most effective catalyst. The reaction of nitrobenzene with 1-propanol and 1-butanol gave 2-ethyl-3-methylquinoline and 3-ethyl-2-propylquinoline in 65 and 70% yields respectively. p-Methoxynitrobenzene gave 3-ethyl-6-methoxy-2-propylquinoline in 70% yield with 1-butanol. The reaction appears to include the redox reaction between the nitroarenes and the alcohols, that is, a catalytic hydrogen transfer reaction which generates the aminoarenes and aldehydes. Thus, the alcohol plays roles as both a reductant and an aldehyde precursor.
On the mechanism of the chemiluminescent condensation of aniline with butyraldehyde catalyzed by LnCl3 · 6H2O
作者:R. G. Bulgakov、S. P. Kuleshov、A. R. Makhmutov、U. M. Dzhemilev
DOI:10.1134/s0023158410040129
日期:2010.8
The mechanism of the chemiluminescent condensation of aniline with butyraldehyde into 3-ethyl-2-propylquinoline catalyzed by LnCl3 · 6H2O (Ln = Tb, Ho) is reported. A likely scheme of the catalytic condensation of aniline with butyraldehyde has been developed by simulation of separate steps of the reaction using chemiluminescence and photoluminescence methods and quantum-chemical calculations of the