group consisting of halogen and phthalimide; (c) --Z is selected from the group consisting of hydrogen, hydroxy, and methoxy; (d) --R is an alkyl group having from about 1 to about 24 carbon atoms; (e) --R1 is selected from the group consisting of hydrogen, hydroxy, alkyl esters of hydroxy having from about 1 to about 5 carbon atoms, alkyl having from about 1 to about 5 carbon atoms, and alkoxy ha