Abstract
The reactions of octachlorocyclotetraphosphazatetraene. N4P4Cl8, with 2,2-dimethylpropane-1,3-diol gave the following isolated and characterised derivatives; N4P4Cl6[(OCH2)2CMe 2], N4P4Cl2[(OCH2)2CMe 2]2 (2 isomers) and N4P4CI2[(OCH2)2CMe2]3. 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.