A series of 2,4,6-triarylpyridines have been prepared by the one-pot reaction of aldehydes with aromatic ketones in the presence of ammonium acetate undermicrowaveirradiation without catalyst. This method has the advantage of easier workup, shorter reaction time, higher yield, and environment-friendly.
One-Pot Multicomponent Condensation Reaction of Aldehydes with Cyclic Ketones
作者:Ping Wu、Xi-Mei Cai、Qi-Fang Wang、Chao-Guo Yan
DOI:10.1080/00397911003706990
日期:2011.2.28
microwave irradiation, the one-pot multicomponent condensationreaction of three molar aromatic aldehydes with two molar cyclicketones having free α,α′-methylene positions such as cyclopentanone or cyclohexanone in the presence of ammonium acetate and acetic acid afforded dicyclocalkenopyridines with two α-arylidene groups in good yields. In similar reaction conditions, 1-tetralone, which has only one α-methylene