Ethyl 2-oxo-2H-chromene-3-carboxylate derivatives were synthesized and characterized by FT-IR, NMR, MS and X-ray crystal diffraction. Compound 3d crystallizes in the Triclinic system with space group P-1, a = 5.4325 (17) Å, b = 5.4325 (17) Å, c = 15.017 (6) Å, α= 106.057 (6) °, β = 99.012 (5) °, γ= 94.370 (4) °, V = 690.7 (4) Å3, Z = 2, Dc = 1.453 g/cm3, Mr = 302.20, F(000) = 308 and µ = 0.14 mm–1
合成了2-氧代-
2H-色烯-3-
羧酸乙酯衍
生物,并通过FT-IR、NMR、MS和X射线晶体衍射对其进行了表征。化合物3d在空间群P-1的三斜晶系中结晶,a = 5.4325 (17) Å, b = 5.4325 (17) Å, c = 15.017 (6) Å, α= 106.057 (6) °, β = 99.012 ( 5) °, γ= 94.370 (4) °, V = 690.7 (4) Å 3 , Z = 2, Dc = 1.453 g/cm 3 , Mr = 302.20, F(000) = 308 和 µ = 0.14 mm –1 . 化合物3e在空间群P 2 1 / c的单斜晶系中结晶,a = 6.5628 (18) Å, b = 6.7064 (19) Å, c = 26.628 (7) Å, β = 94.063 (3) °, V = 1169.0 (6) Å 3,