Abstract
Abstract The reactions of octachlorocyclotetraphosphazatetraene, N4P4Cl8, with diethyl bis(hydroxymethyl)-malonate, (HOCH2)2C(CO2Et)2, gave the following isolated and characterized derivatives: N4P4Cl6-[(OCH2)2C(CO2Et)2], N4P4Cl4[(OCH2)2 C(CO2Et)2]2, (two isomers), N4P4Cl2[(OCH2)2C(CO2Et)2]3 and N4P4[(OCH2)2C(CO2Et)2]4. 31P, 1H and 13C n.m.r. spectroscopic investigations showed all derivatives to have spiro structures. The isomeric bis derivatives have 2,2,4,4- and 2,2,6,6-structures. A comparison is made of product type and of the nuclear magnetic resonance spectra with those of the derivatives of propane-1,3-diol and 2,2-dimethylpropane-1,3-diol.
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