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Synthesis and Crystal Structure of 5-(4-Methoxybenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione
Corresponding Author(s) : Wulan Zeng
Asian Journal of Chemistry,
Vol. 25 No. 2 (2013): Vol 25 Issue 2
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-dioxane-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, a = 85.1440(10)º, b = 84.7750(10)º, g = 89.388(2)º, C14H14O5, Mr = 262.25, V = 1297.3(2) Å3, Z = 4, Dc = 1.343 g/cm3, 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.
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References
M.J. Dianez and A.L. Castro, Acta Crystallogr., C47, 1028 (1991).
A.J. Blake, G.A. Hunter and H. McNab, J. Chem. Res., 118, 921 (1989).
M. Zhou, R. Li and Z.Y. Ding, Acta Crystallogr., E65, o2171 (2009).
A.S. Ivanov, Chem. Soc. Rev., 37, 789 (2008).
L.E. da Silva, A.C. Joussef, L.L. Silva, S. Foro and B. Schmidt, Acta Crystallogr., E62, o3866 (2006).
T. Watanabe, T.F. Knöpfel and E.M. Carreira, Org. Lett., 5, 4557 (2003).
G.M. Sheldrick, Acta Cryst., A64, 112 (2008).
W.L. Zeng, Acta Cryst., E66, o2319 (2010).
W.L. Zeng, Acta Cryst., E67, o478 (2011).
W.L. Zeng, Acta Cryst., E67, o1351 (2011).