Derivatives of 2,4-dimethoxy-1,3,5-triazine

The crystal structure of three derivatives of 2,4-dimethoxy-1,3,5-triazine are described. In 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)morpholine, C(9)H(14)N(4)O(3), the morpholine moiety adopts a chair conformation, and the dimethoxytriazine molecule adopts a butterfly conformation with respect to the two methoxy groups. In 3-(4,6-dimethoxy-1,3,5-triazin-2-yloxy)-2-methylphenol, C(12)H(13)N(3)O(4), the dimethoxytriazine moiety adopts a propeller conformation with respect to the methoxy groups, and the molecules form dimers held together by O-H.N hydrogen bonds. 4-(4,6-Dimethoxy-1,3,5-triazin-2-yloxy)phenyl phenyl ketone, C(18)H(15)N(3)O(4), crystallizes with two crystallographically independent molecules in the asymmetric unit. The two molecules adopt different conformations with respect to the geometric relations between the phenyl ketone and triazine moieties.