B. De Ruiter

Derivatives of cis-NPCL2(NSOCl)2 and (NPCl2)2NSOCl. Part VIII. Dimethylamino Derivatives of cis-NPCI2(NSOCl)2

Abstract Cis -NPCl 2 (NSOCl) 2 (I) reacts with dimethylamine in a molar ratio of 1:2 to give four isomeric monosubstituted compounds N 3 PS 2 O 2 Cl 3 NMe 2 ; the position of the substituent depends strongly on the solvent. The second reaction step leads to three isomeric bis(dimethylamino) derivatives. Furthermore, two trisubstituted and two tetrasubstituted derivatives are described. Structures are assigned on the basis of 1 H NMR spectra. A suggestion for the substitution mechanism of the first step is offered. The 31 P NMR spectra of the secondary-amino derivatives of the ring systems (NPCl 2 ) 3 , (NPCl 2 ) 2 NSOCl and NPCl 2 (NSOCl) 2 , known up to now, are compared.