Issue 64, 2018

Activation of carbon suboxide (C3O2) by U(iii) to form a cyclobutane-1,3-dione ring

Abstract

The activation of C3O2 by the U(III) complex [U(η5-Cp′)3] (Cp′ = C5H4SiMe3) is described. The reaction results in the reductive coupling of three C3O2 units to form a tetranuclear complex with a central cyclobutane-1,3-dione ring, with concomitant loss of CO. Careful control of reaction conditions has allowed the trapping of an intermediate, a dimeric bridging ketene complex, which undergoes insertion of C3O2 to form the final product.

Graphical abstract: Activation of carbon suboxide (C3O2) by U(iii) to form a cyclobutane-1,3-dione ring

Supplementary files

Article information

Article type
Communication
Submitted
01 Jun 2018
Accepted
18 Jul 2018
First published
19 Jul 2018

Chem. Commun., 2018,54, 8830-8833

Activation of carbon suboxide (C3O2) by U(III) to form a cyclobutane-1,3-dione ring

N. Tsoureas and F. G. N. Cloke, Chem. Commun., 2018, 54, 8830 DOI: 10.1039/C8CC04391D

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