A simple and efficient synthesis of 2,4,6-triarylpyridines is described from a novelreaction between chalcones and ammonium acetate undersolvent-freeconditions in excellent yields.
An efficient and chemoselective synthesis of N-substituted 2-aminopyridines via a microwave-assisted multicomponent reaction
作者:Shujiang Tu、Bo Jiang、Yan Zhang、Runhong Jia、Junyong Zhang、Changsheng Yao、Feng Shi
DOI:10.1039/b614747j
日期:——
A facile and selective synthesis of N-substituted 2-aminopyridines is accomplished via microwave-assisted multi-component reactions controlled by the basicity of amine and the nature of solvent. In addition, a possible mechanism accounting for the reaction was proposed.
New one-pot approach to regio-synthesis of substituted 2-aminothiazoles from the corresponding keto-aziridines
作者:Heshmat A. Samimi、Somaye Mohammadi
DOI:10.1007/s13738-013-0276-7
日期:2014.2
Ring expansion of keto-aziridines to the corresponding 2-aminothiazoles (54–67 %) using ammonium thiocyanate in the presence of RuCl3 under refluxing acetonitrile is described. A plausible mechanism for the synthesis of substituted 2-aminothiazoles has been proposed.
bifonazole and pyrrolnitrin, two compounds belonging to the class of antimycotic drugs. The synthesis of the title pyrroles has been performed starting from 1,3-diaryl-2-propen-1-ones, which were reacted with tosylmethyl isocyanide to give 3-aroyl-4-arylpyrroles. Reduction of the resulting compounds by lithiumaluminumhydride furnished the related alcohols, which were treated with 1,1'-carbonyldimidazole to