Skeletal stabilization: A basis for new classes of cyclophosphazanes

Article abstract of DOI:10.1080/10426509708545633

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.

Full text of DOI:10.1080/10426509708545633

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Phosphorus, Sulfur, and
Silicon and the Related
Elements
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Skeletal Stabilization: A
Basis for New Classes of
Cyclophosphazanes
Robert M. Hands , Monte Helm , Bruce Noll &
Arlan D. Norman
a Department of Chemistry and Biochemistry ,
University of Colorado , Boulder, CO 80309, USA
b Department of Chemistry and Biochemistry ,
University of Colorado , Boulder, CO 80309, USA
c Department of Chemistry and Biochemistry ,
University of Colorado , Boulder, CO 80309, USA
d Department of Chemistry and Biochemistry ,
University of Colorado , Boulder, CO 80309, USA
Published online: 02 Apr 2008.
To cite this article: Robert M. Hands , Monte Helm , Bruce Noll & Arlan
D. Norman (1997) Skeletal Stabilization: A Basis for New Classes of
Cyclophosphazanes, Phosphorus, Sulfur, and Silicon and the Related Elements,
124:1, 285-293, DOI: 10.1080/10426509708545633
To link to this article: http://dx.doi.org/10.1080/10426509708545633
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