ABSTRACT In this paper we report a facile and efficient procedure for the synthesis of 1, 3, 5- tris-arylhexahydro-1, 3, 5-triazines (3) by reaction of anilines 1 with 1, 3, 6, 8-tetrazatricyclo [4.4. 1.1 [3],[8a],[8b]-dodecane (TATD)(2). The diequatorial chair conformational preference of 3b (Ar= p-tolyl) in the solid state was established by X-ray crystallography and agrees well with molecular mechanics calculations.