Abstract Addition of phenylphosphine to allylphosphonate followed by reduction of the resulting diphosphonate gives a new branched phosphine, bis (3-phosphinopropyl) phenylphosphine. Its reaction with paraform and p-toluidine yields oligomeric 3-[3-( propylenophenylphosphino) propyl]-1, 5-di-p-tolyl-1, 5, 3, 7-diazadiphosphacyclooctane. Diethyl (5-allyl-2-ethoxybenzyl) phosphonate was obtained. Its reduction gives ...
