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

作者：Tsoureas Nikolaos^*; Cloke F Geoffrey N^*

来源：Chemical Communications, 2018, 54(64): 8830-8833.

DOI：10.1039/c8cc04391d

The activation of C3O2 by the U(iii) complex [U((5)-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.

• 出版日期2018-8-18