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Studies of Phosphazenes. Part 33. Thermal Rearrangement of Alkoxy(p-methylphenoxy)cyclophosphazenes: A Synthetic Route to Oxocyclophosphazanes, Phosphazadienes and Phosphaz-1-enes

DOI: 10.1039/DT9910000299

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Journal of the Chemical Society, Dalton Transactions p. 299 - 306 (1991)

Update date:2022-08-03

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Authors:

Karthikeyan, SakthivelKarthikeyan, Sakthivel

Krishnamurthy, Setharampattu S.Krishnamurthy, Setharampattu S.

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Article abstract of DOI:10.1039/DT9910000299

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.

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Product name:2,4,6-Triethoxy-2,4,6-tris-p-tolyloxy-2λ5,4λ5,6λ5-[1,3,5,2,4,6]triazatriphosphinine

Cas No:133902-96-2

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