
Phosphorus, Sulfur and Silicon and the Related Elements p. 151 - 158 (1998)
Update date:2022-07-29
Topics:
Boduszek, Bogdan
Halama, Agnieszka
α-Aminobenzylphosphonic acids possessing the hydroxy groups in ortho and para positions, underwent a C-P bond cleavage during heating with aqueous NaOH solution. In the case of o- and p-hydroxy diethyl esters 1 and 3 the products of the cleavage were the corresponding aldehydes and phosphorous acid (H3PO3). The m-hydroxy derivative was not affected by a base. It has been found, that displacement of the hydroxy group by the methoxy one in the p-hydroxybenzyl(α-amino)phosphonic acid leads to a stability of such a compound towards a base; no a C-P bond cleavage was observed in this case.
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