Issue 32, 2011

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

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

Supplementary files

Article information

Article type
Communication
Submitted
26 May 2011
Accepted
28 Jun 2011
First published
15 Jul 2011

Chem. Commun., 2011,47, 9057-9059

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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