Acta Cryst. (2005). E61, o1627-o1628  [ doi:10.1107/S1600536805013127 ]

Methyl 3,3,7,7,9-pentamethyl-1,5-dioxaspiro[5.5]undec-8-ene-8-carboxylate

A. M. P. Koskinen, R. S. Laitinen, R. Oilunkaniemi, S. K. Savilampi and R. J. Toivola

Abstract: The crystal structure of the title ester, C₁₆H₂₆O₄, consists of discrete spirocyclic molecules. The six-membered 1,3-dioxane fragment is in a chair conformation and the cyclohexene fragment is in a distorted half-chair conformation. In the crystal structure, the molecules are connected by weak C-HO contacts, with CO distances ranging from 2.642 (1) to 2.762 (1) Å, forming a three-dimensional network.

Online 14 May 2005

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