Melamine and stearic anhydride, palmitic anhydride, myristic anhydride, orlauric anhydride (molar ratio 1: 2.2) were reacted by boiling in pyridine andeach of them yielded two kinds of diacyl substituted products having lowermelting point and higher melting point. Similarly, capric anhydride or caprylicanhydride yielded two kinds of diacyl substituted product and monoacyl substitutedproduct, while using of butyric anhydride or acetic anhydride gave onekind of each of diacyl substituted product and monoacyl substituted product. Reaction of each diacyl substituted product of low melting point and a correspondingamount of saturated fatty acid anhydride in pyridine for 10 hrs. causedisomerization into corresponding diacyl substituted product having high meltingpoint. Fusion reaction of melamine and palmitic anhydride or myristicanhydride yielded N, N′, N″-tripalmitoyl-and N, N′, N″-trimyristoylmelamine, respectively, and these are new substances not found in literatures.
