Abstract
Reactions involving skeletally stabilized intermediate phosphazanes yield new cyclophosphazanes. Thermolysis of C6H4(NH)2PPh (9) yields (PhP)4 and the λ5 phosphazane [C6H4(NH)2]2PPh (10); 10 upon cyclocondensation with PhPCl2 yields cis,trans- and cis,cis- spiro λ3-λ5-λ3 phosphazanes [C6H4(N)2PPh]2PPh (12). Reaction of the bis(silyl) cyclophosphazane C6H4(NSiMe3)2PPh with PhPCl2 yields triphosphazane C6H4[NP(Ph)Cl]2PPh (13); 13 with 1,2-(NH2)2C6H4 forms cyclotriphosphazane C6H4(N2PPh)(PPh)2C6H 4(NH)2 (14). 14 is the key intermediate in formation of several new [(C6H4N2PPh)]2-(PPh)(PR) (R = Ph, Me) cleft-containing cyclotetraphosphazanes (17). Synthesis and structural characterization of the new phosphazanes are described.
| Original language | English |
|---|---|
| Pages (from-to) | 285-293 |
| Number of pages | 9 |
| Journal | Phosphorus, Sulfur and Silicon and the Related Elements |
| Volume | 124 |
| Publication status | Published - 1997 |
Keywords
- Cyclophosphazanes
- Phosphazanes
- Triphosphazanes, tetraphosphazanes, aminophosphines
ASJC Scopus subject areas
- Inorganic Chemistry
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Hands, R. M., Helm, M., Noll, B., & Norman, A. D. (1997). Skeletal stabilization: A basis for new classes of cyclophosphazanes. Phosphorus, Sulfur and Silicon and the Related Elements, 124, 285-293.