| abstract |
A novel ligand for use in hydroformylation reactions wherein at least one olefin having from 2 to 20 carbon atoms is contacted in a reaction zone at a temperature of from about 20° C. to about 250° C. and a pressure of from about 50 psig to about 800 psig with hydrogen, carbon monoxide, and a catalyst containing rhodium, the ligand having the formula ##STR1## wherein: n is 1-4; n each R is independently selected from hydrogen, alkyl, alkoxy, aryloxy, aryl, aralkyl, alkaryl, alkoxyalkyl, cycloaliphatic, halogen, alkanoyl, alkanoyloxy, alkoxycarbonyl, carboxyl or cyano; n each R 1 and R 2 is independently selected from alkyl, aryl, aralkyl, alkaryl or cycloaliphatic; n each R 3 and R 4 is independently selected from hydrogen and the R 1 substituents; and n each Y is independently selected from the elements N, P, As, Sb and Bi. |