reparing dianthranilate compounds which comprises (a) admixing reactants as follows: (1) a diol of the formula R1(OH)2, wherein R1 is an alkylene group having at least about 20 carbon atoms, and wherein the ???OH groups are primary or secondary, (2) isatoic anhydride, present in an amount of at least about 2 moles of isatoic anhydride per every one mole of diol, (3) a catalyst which is 1,4-diazabi