The Transition Metal-catalyzed<i>N</i>-Alkylation and<i>N</i>-Heterocyclization. A Reductive Transformation of Nitroarenes into (Dialkylamino)arenes and 2,3-Dialkyl-substituted Quinolines Using Aliphatic Aldehydes under Carbon Monoxide
The catalytic N-alkylation and N-heterocyclization of nitroarenes occur at 180 °C under a carbon monoxide pressure of 70 atm and in the presence of aldehyde and such transitionmetal complexes as rh...
Synthesis of substituted quinolines by the reaction of anilines with alcohols and CCl4 in the presence of Fe-containing catalysts
作者:R. I. Khusnutdinov、A. R. Bayguzina、R. I. Aminov
DOI:10.1007/s11172-013-0019-z
日期:2013.1
Substituted quinolines were synthesized by the reaction of aniline derivatives with aliphatic alcohols and CCl4 upon the action of the FeCl3·6H2O catalyst.
A variety of aminoarenes react with aliphaticaldehydes in the presence of a catalytic amount of a rhodium complex and an excess amount of the corresponding nitroarenes at 180 °C to give 2-alkyl- and 2,3-dialkyl-substituted quinolines in excellent yields. Among the rhodium complexes examined, [Rh(norbornadiene)Cl]2 exhibits the highest activity as a catalyst. Thus, 2-methyl-, 2-ethyl-3-methyl-, 2-propyl-3-ethyl-
在催化量的铑配合物和过量相应硝基芳烃的存在下,多种氨基芳烃在 180 °C 下与脂肪醛反应,以极好的收率得到 2-烷基和 2,3-二烷基取代的喹啉。在所检测的铑配合物中,[Rh(降冰片二烯)Cl]2 作为催化剂表现出最高的活性。因此,2-甲基-、2-乙基-3-甲基-、2-丙基-3-乙基-和2-丁基-3-丙基喹啉衍生物很容易从氨基芳烃和乙醛、丙醛、丁醛和戊醛中获得分别。