名称:
Synthesis and crystal structure of 3,5-di(2-propenyl)-6-phenyl-1,3,5-triazine-2,4-dione and 2-dimethylamino-4-ethoxycarbonylmethoxy-6-phenyl-1,3,5-triazine
摘要:
The title compound 3,5-di(2-propenyl)-6-phenyl-1,3,5-triazine-2,4-dione has been synthesized by the reaction of 6-phenyl-1,3,5-triazine-2,4-dione with allyl bromide. Its structure was determined by X-ray single crystal diffraction. The crystal belongs to orthorhombic, space group Pbca with the following crystallographic parameters: a = 16.282(4) Angstrom, b = 8.888(2) Angstrom, c = 19.281(5) Angstrom, alpha = 90degrees, beta = 90degrees, gamma = 90degrees, mu = 0.088 mm(-1), V = 2790.1(13) Angstrom(3), z = 8, Dx = 1.282 mg/m(3), F(000) = 1136, T = 293(2) K, 2.11degrees less than or equal to theta less than or equal to 25.02degrees, the final R factor: R-1 = 0.0430, wR(2) = 0.0981. The X-ray results demonstrate that the reaction of 6-phenyl-1,3,5-triazine-2,4-dione with allyl bromide in the presence of N,N-dimethylformamide and potassium carbonate yields the N-alkylated product. The title compound 2-dimethylamino-4-ethoxycarbonylmethoxy-6-phenyl-1,3,5-triazine has been synthesized by a new reaction, in which the solvent N, N-dimethylformamide involves. Its structure was determined by X-ray single crystal diffraction. The crystal belongs to triclinic, space group P-1 with the following crystallographic parameters: a = 7.977(2) Angstrom, b = 10.394(3) Angstrom, c = 10.837(3) Angstrom, alpha = 111.774(5)degrees, beta = 104.050(5)degrees, gamma = 99.446(5)degrees, mu = 0.093 mm(-1), V = 776.6(4) Angstrom(3), z = 2, Dx = 1.293 mg/m(3), F(000) = 320, T = 293(2) K, 2.14degrees less than or equal to theta less than or equal to 25.03, the final R factor: R-1 = 0.0582, wR(2) = 0.1399. The distance of N(4)-C(2) (1.339 Angstrom) is much shorter than the length of normal C-N (1.47 Angstrom) and very close to that of C=N (1.33 Angstrom), which is indicative of the significant double bond character.