Azidophosphanes: Attractive starting materials for the preparation of phosphazenes
Abstract
Azidophosphanes are versatile reactants in the Staudinger reaction. The azides Cl2PN3 (1), (Et2N)ClPN3 (2), and (Et2N)2PN3 (3) react with phosphanes to give the N-phosphanyl phosphazenes 4–10. (Et2N)P(N3)2 is oxidized by PhN3 yielding (Et2N)P(N3)2NPh (11), which with PPh3 yields the di- and triphosphazenes 12 and 13.