A Facile Access to 2-Methylthio/Alkoxy/Amino-3-acylimidazo[1,2-a]pyridines Based on Cupric Chloride Promoted Oxidative Ring Closure of α-Oxoketene N,S-, N,O-, and N,N-Acetals
A Facile Access to 2-Methylthio/Alkoxy/Amino-3-acylimidazo[1,2-a]pyridines Based on Cupric Chloride Promoted Oxidative Ring Closure of α-Oxoketene N,S-, N,O-, and N,N-Acetals
A one-pot, three-component reaction between pyridine, phenacyl bromide, and thiocyanate is described. The reaction afforded the corresponding special type of fully substituted imidazo[1,2-a]pyridine derivatives in good yields without using any catalyst or activation.
描述了吡啶,苯甲酰溴和硫氰酸盐之间的一锅三组分反应。该反应以高收率获得了相应的特殊类型的全取代的咪唑并[1,2- a ]吡啶衍生物,而无需使用任何催化剂或进行活化。
A Facile Access to 2-Methylthio/Alkoxy/Amino-3-acylimidazo[1,2-<i>a</i>]pyridines Based on Cupric Chloride Promoted Oxidative Ring Closure of α-Oxoketene N,S-, N,O-, and N,N-Acetals