REDUCTIVE DEHALOGENATION OF ARYL HALIDES BY THE NANOMETRIC SODIUM HYDRIDE USING LANTHANIDE CHLORIDE AS CATALYST

Sodium hydride of nanometric size exhibits high reactivity for the red uctive dehalogenation of aryl halides in the presence of a catalytic a mount of lanthanide chloride or a mixture of lanthanide chloride and t ransition metal chloride. The catalytic activities of with increasing atomic number of the rare earth elements. lanthanide chlorides decreas e with increasing atomic number of the rare earth elements. The combin ation of ytterbium chloride and a transition metal chloride shows rema rkable synergic effect in the reductive dehalogenation of aryl halides .