N,N\|bis(diphenylphosphinomethyl)\|ethylenediamine\|N'\|ethylphosphonic\} acid \{(Ph\-2PCH\-2)\-2N\|\}CH\-2CH\-2N\++H\-2CH\-2CH\-2PO\-3H\+-(BDPPEDAEPA) was synthesized with good yield by means of Mannich reaction with ethylenediamine\|N\|ethylphosphonic acid H\-2NCH\-2CH\-2N\++H\-2CH\-2CH\-2PO\-3H\+- and bis\|(hydroxymethyl)diphenylphosphonium chloride [Ph\-2P\++(CH\-2OH)\-2]Cl\+- under mild conditions. The new type of catalyst supports, zirconium [N,N\|bis(diphenylphosphinomethyl)\|ethylenediamine\|N'\|et...