Reactivity of azoles towards benzaldehyde and its dimethylacetal. Synthesis of N,N'-diazolylphenylmethanes
作者:P. Ballesteros、J. Elguero、R.M. Claramunt
DOI:10.1016/s0040-4020(01)91435-8
日期:1985.1
Some 1,1'-diindazolylphenylmethanes have been prepared from indazoles and benzaldehyde in presence of zinc chloride as catalyst. The reaction was strongly dependent on the basic pKa 's of azoles and only few pyrazolyl derivatives could be prepared by this procedure. Extension of this method to other azoles was accomplished by using benzaldehyde dimethylacetal.
在氯化锌的存在下,由吲唑和苯甲醛制备了一些1,1'-二吲唑基苯基甲烷。该反应是强烈依赖于基本的pK一个的唑类和仅少量的吡唑基衍生物可以通过此方法制备。通过使用苯甲醛二甲基乙缩醛可将该方法扩展至其他唑类。