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239ChemInform Abstract Phosphorus trichloride reacts with the lithium amides (Ia) -(Ic) and subsequently with the phoshinoamide (II) to give the diaminochlorophosphines (III) which produce mixtures of the aminoiminophosphines (IV) and (V) upon distillation. (Vb) isomerizes to yield (VI). The aminoiminophosphine (VII) is obtained from (IVa) and (II). The influence of bulky substituents on the stability of (IV) is studied by the reaction of (IVa) with the lithium organyls (VIII) wich produces the phosphinoiminophosphines (IX). The less bulky dichloroaminophosphines (X) yield the diazadiphosphetidines (XI) instead. The more bulky dichloride (XII) favours the formation of the diphosphene (XIII). The phosphinoamide (XIV) reacts with phosphorus trichloride to produce the diazadiphosphetidine (XV). (1H-, 13C-, 15N-, 29Si-, 31P-NMR-data, crystal structures).

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