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Abstract
Reactions of NPCl2(NSOX)2 (X = Ph, Cl, F) with 1,2-diaminoethane or 2-aminoethanol in a molar ratio 1:2 afford spirocyclic compounds with formula NP[NH(CH2)2Y][NSOX]2 (Y = NH,O). Using the corresponding propane analogues as reagents, compounds NP[NH(CH2)3,Y][NSOX]2(Y = NH.0) are obtained. The size of the spiro ring appears to affect the 31P NMR shift of the spiro phosphorus nucleus to a large extent. The crystal structure of NP[NH(CH2)2O](NSOSl)2, has been determined by X-ray analysis. All the three oxygen atoms are on one side of the mean NPS-plane.
