Arenediazonium tetrachlorocuprates(II). Modification of the Meerwein and Sandmeyer reactions
作者:Mykola D. Obushak、Mykhaylo B. Lyakhovych、Mykola I. Ganushchak
DOI:10.1016/s0040-4039(98)02165-0
日期:1998.12
In the copper-catalysed reactions of arenediazonium chlorides with unsaturated compounds arenediazonium tetrachlorocuprates(II) are formed as intermediates. A general method of preparation of these complexed diazonium salts is described. In polar solvents these salts undergo chlorinative dediazoniation to give chloroarenes in high yield. The reaction of an arenediazonium tetrachlorocuprate(II) with
在铜催化的壬二鎓氯化物与不饱和化合物的铜催化反应中,形成了四氯铜鎓(II)间二氮杂鎓。描述了这些络合的重氮盐的一般制备方法。在极性溶剂中,这些盐会进行氯化脱重氮反应,从而以高收率得到氯代芳烃。芳烯二鎓四氯铜酸酯(II)与活化的烯烃的反应产生与Meerwein反应相同的产物。提出了用于该反应的自由基阳离子机理。