S. Bourne, A. M. Modro, T. Modro
May 1, 1995
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Journal
Phosphorus Sulfur and Silicon and The Related Elements
Abstract
Abstract The crystal and molecular structure of dimethyl 2-hydroxy-3-benzoylpropylphosphonate (1) has been determined. P21/c, a = 11.989(3), b = 12.990(3), c = 8.601(3) A; V = 1339.1(7) A3. Molecular parameters indicate strong intramolecular interactions between the hydroxyl oxygen and the phosphorus atom. The hydrogen bonding involves the phosphoryl group as a donor, and occurs intermolecularly, yielding a dimeric arrangement of the molecules. The acid-catalyzed dehydration of 1, and the base-promoted elimination of the tosylate derivative, yielded the same (E) dimethyl 3-benzoyl-prop-2-en-ylphosphonate as the exclusive product.