119874-70-3Relevant academic research and scientific papers
Studies of Phosphazenes. Part 33. Thermal Rearrangement of Alkoxy(p-methylphenoxy)cyclophosphazenes: A Synthetic Route to Oxocyclophosphazanes, Phosphazadienes and Phosphaz-1-enes
Karthikeyan, Sakthivel,Krishnamurthy, Setharampattu S.
, p. 299 - 306 (2007/10/02)
The aryloxy(alkoxy)cyclotriphosphazenes N3P3(OR)6-n(OC6H4Me-p)n (R = Me, n = 1 - 3; R = Et or CH2Ph, n = 3) rearrange on heating to give trioxocyclotriphosphazanes; the di- and mono-methoxy derivatives, N3P3(OMe)6-n(OC6H4Me-p)n (n = 4 or 5), yield dioxophosphaz-1-enes and an oxophosphazadiene respectively.The 1H, 13C and 31P NMR data for the starting materials and the products are presented.No evidence has been found for partially rearranged products.The geometrical disposition of the aryloxy groups in the starting material is retained in the rearranged products.Some aspects of the mechanism of the thermal rearrangement are discussed.
Synthesis and Nuclear Magnetic Resonance Spectroscopy of Geometrical Isomers of 1,3,5-Trimethyl-2,4,6-tris(p-methylphenoxy)-2,4,6-trioxocyclotriphosphazane: X-Ray Cryastal Structure of the trans Isomer
Karthikeyan, Sakthivel,Vyas, Krishnamurthi,Krishnamurthy, Setharampattu S.,Cameron, T. Stanley,Vincent, Beverly R.
, p. 1371 - 1376 (2007/10/02)
Both cis and trans isomers of tri(N-methyl)tris(p-methylphenoxy)trioxocyclotriphosphazane, N3Me3P3O3(OC6H4Me-p)3, have been prepared by the thermal rearrangement of the respective trimethoxycyclophosphazenes, N3P3(OC6H4Me-p)3(OMe)3.The crystal and molecul
