Synthesis and characterization of novel cycloalkanespiro-5-hydantoin phosphonic acids

ED Naydenova, PT Todorov…

Index: Naydenova, Emilia D.; Todorov, Petar T.; Troev, Kolio D. Phosphorus, Sulfur and Silicon and the Related Elements, 2010 , vol. 185, # 7 p. 1315 - 1320

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Citation Number: 17

Abstract

A series of new cycloalkanespiro-5-hydantoin phosphonic acids have been synthesized and characterized. The mixture of [(2, 4-dioxo-1, 3-diazaspiro-alkane-3-yl)-methyl] phosphonic acids and [(2, 4-dioxo-1, 3-diazaspiro-alkane-1, 3-diyl) dimethyl] diphospho-nic acids was obtained from cycloalkanespiro-5-hydantoins, formaldehyde, and phosphorus trichloride in a molar ratio of 1: 2: 2, by a procedure modified by us. Their structures were proved by ...