Wulan Zeng
2014
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Abstract
A new Meldrum's acid compound 5-(4-methoxybenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione was prepared by 2,2-dimethyl-1,3-diox-ane-4,6-dione with 4-methoxybenzaldehyde in ethanol and its crystal structure was determined by X-ray crystallographic techniques. It crystallizes in triclinic, space group P-1 with a = 9.1249(6) Å, b = 9.9060(8) Å, c = 14.4640(16) Å, α = 85.1440(10)º, β = 84.7750(10)º, γ = 89.388(2)º, C 14 H 14 O 5 , Mr = 262.25, V = 1297.3(2) Å 3 , Z = 4, D c = 1.343 g/cm 3 , F (000) = 552, µ = 0.102 mm -1 . The 1,3-dioxane ring is in a distorted envelope conformation. The crystal structure is stabilized by weak intermolecular C-H···O hydrogen bonds.