Copper-Catalyzed C–H Azidation of Anilines under Mild Conditions
作者:Conghui Tang、Ning Jiao
DOI:10.1021/ja3089907
日期:2012.11.21
A novel and efficient copper-catalyzed azidation reaction of anilines via C-H activation has been developed. This method, in which the primary amine acts as a directing group by coordinating to the metal center, provides ortho azidation products regioselectively undermildconditions. This effective route for the synthesis of aryl azides is of great significance in view of the versatile reactivity
Synthesis, Characterization, and Ethylene Oligomerization of Nickel Complexes Bearing <i>N</i>-((Pyridin-2-yl)methylene)quinolin-8-amine Derivatives
作者:Wen-Hua Sun、Kefeng Wang、Katrin Wedeking、Dongheng Zhang、Shu Zhang、Jingjing Cai、Yan Li
DOI:10.1021/om700440v
日期:2007.9.1
A series of nickel complexes ligated by N-((pyridin-2-yl)methylene)quinolin-8-amine derivatives were synthesized by one-pot reaction of 8-aminoquinolines, 1-(pyridine-2-yl) ketones, and nickel halides and characterized by elemental and spectroscopic analyses along with X-ray diffraction analyses. These nickel complexes exhibit two kinds of structures, namely, dimeric with octahedral-coordinated geometry
The synthesis of 8-aminoquinolines and 1,10-phenanthrolines with substituents in α of the nitrogen has been performed through an inverse-demanding aza-Diels–Alder (Povarov reaction) in the fluoroalcohols TFE or HFIP. This path involves simple starting materials: 1,2-phenylenediamines, enol ethers and aldehydes.
A Facile Synthesis of Substituted 2-Alkylquinolines through [3 + 3] Annulation between 3-Ethoxycyclobutanones and Aromatic Amines at Room Temperature
作者:Gang Shan、Xiuyun Sun、Qian Xia、Yu Rao
DOI:10.1021/ol202334s
日期:2011.11.4
An efficient single-step approach toward the synthesis of 2-alkylquinolines is described. Through a Lewis acid mediated [3 + 3] annulation reaction between 3-ethoxycyclobutanones and aromatic amines, a variety of multisubstituted 2-alkylquinoline derivatives were prepared regioselectively at room temperature.
An efficient method towards synthesis of 1,10-phenanthrolines is described. Through Lewis acid-catalyzed annulation reaction between 3-ethoxycyclobutanones and 8-aminoquinolines, a variety of unsymmetric and symmetric 1,10-phenanthroline derivatives were readily prepared with high regioselectivity at room temperature.