The invention relates to a method for carrying out CC-coupling reactions,
in particular a Heck and Suzuki reaction, in the presence of supported
palladium as the catalyst and a base in a monophase or multiphase solvent
mixture. According to said method, palladium detaches itself from the
support in a characteristic manner, is redeposited after the reaction and
the quantity of palladium not deposited after the reaction is
significantly lower than 5000 ppm, in relation to the palladium used.