Synthesis and Crystal Structure of 3-((m-Tolylamino)methylene)-1,5-dioxaspiro[5.5]undecane-2,4-dione
A new N, O-containing spiro compound 3-((m-tolylamino) methylene)-1,5-dioxaspiro[5.5] undecane-2,4-dione was synthesized and its crystal structure was determined by X-ray crystallographic techniques. The compound crystallizes in triclinic, space group P-1 with a = 7.0264 (14) angstrom, b = 7.8523 (16)angstrom, c = 14.102 (3)angstrom, a = 94.75 (3)degrees, beta = 98.14 (3)degrees, gamma = 96.29 (3)degrees, C17H19NO4, Mr = 301.33, V = 761.7 (3) angstrom(3), Z = 2, Dc = 1.314 g/cm(3), F (000) = 320, mu(MoK alpha) = 0.094 mm(-1), the final R = 0.0496 and wR = 0.3294. The 1,3-dioxane ring is in a distorted envelope conformation while cyclohexane ring assumes a highly symmetric chair conformation. There exist some intra-and intermolecular hydrogen bonds, C-H center dot center dot center dot pi supramolecular interactions and pi center dot center dot center dot pi stacking interactions in the title compound. All above hydrogen bonds and intermolecular interactions play a significant role in stabilizing the crystal structures.