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Issue 32, 2011
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Towards high-valent uranium compounds from metallacyclic uranium(iv) precursors

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Abstract

Treatment of [NaUN*(C,N)2] [N* = N(SiMe3)2; C,N = CH2SiMe2N(SiMe3)] with I2 led to the formation of the larger metallacycle [UN*(N{SiMe3}SiMe2CH2CH2SiMe2N{SiMe3})I] resulting from U–C cleavage and C–C coupling. Reaction of [NaUN*(O,N)2] [O,N = OC([double bond, length as m-dash]CH2)SiMe2N(SiMe3)] with I2 afforded the UV complex [Na{UN*(O,N)2}2(μ-I)] which was converted into the mononuclear azido derivative [NaUN*(O,N)2(N3)]. This latter was not transformed into the neutral UVI derivative in the presence of I2 but afforded [UV(N{SiMe3}SiMe2C{CHI}O)2I(THF)], resulting from a cascade of addition, substitution and protonolysis reactions.

Graphical abstract: Towards high-valent uranium compounds from metallacyclic uranium(iv) precursors

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Supplementary files

Article information


Submitted
26 May 2011
Accepted
28 Jun 2011
First published
15 Jul 2011

Chem. Commun., 2011,47, 9057-9059
Article type
Communication

Towards high-valent uranium compounds from metallacyclic uranium(IV) precursors

O. Bénaud, J. Berthet, P. Thuéry and M. Ephritikhine, Chem. Commun., 2011, 47, 9057
DOI: 10.1039/C1CC13112E

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