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NMR and X-ray crystallographic studies of linear and cyclic aminomethanephosphinates

✍ Scribed by Edgar González-Juárez; Armando Ortega-Guevara; Irma Linzaga-Elizalde; Jaime Escalante

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
142 KB
Volume
17
Category
Article
ISSN
1042-7163

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✦ Synopsis

We report the preparation of four diastereoisomeric pairs of ethyl { (3-hydroxypropyl)aminomethyl}phenylphosphinates. In two cases, the phosphinates were transformed to 1,4,2oxazaphosphepane heterocycles through one-pot intramolecular esterification. The analogous reaction with formaldehyde gave the six-membered ethyl (1,3-oxazinan-3-ylmethyl)phenylphosphinate, which could be transformed in a posterior reaction to the corresponding aminomethanephosphinic acid. The new compounds were characterized by IR, 1 H, 13 C, and 31 P NMR.

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