Abstract
A series of four diethyl {[(3-hydroxy- propyl)amino](aryl)methyl}phosphonates have been prepared and characterized. In one case, the phosphonate was transformed to a seven-membered 1,4,2- oxazaphosphepane heterocycle through a one-pot intramolecular esterification. The analogous reaction with formaldehyde gave the six-membered diethyl (1,3-oxazinan-3-ylmethyl)phosphonate, which could be transformed in a posterior reaction to the corresponding aminomethanephosphonic acid. © 2006 Wiley Periodicals, Inc. Heteroatom Chem 17:75–80, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20178
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