Novel Dimerization of Maleic Anhydride at a Mo2 Complex: Phase-Driven Keto/Enol Tautomerism in a Phosphinidenium鈥揧lide Complex

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• 作者：Isabel G. Albuerne ; M. Angeles Alvarez ; M. Esther Garcı ; &#769 ; a ; Daniel Garcı ; &#769 ; a-Viv贸 ; Miguel A. Ruiz
• 刊名：Organometallics
• 出版年：2013
• 出版时间：November 11, 2013
• 年：2013
• 卷：32
• 期：21
• 页码：6178-6181
• 全文大小：253K
• 年卷期：v.32,no.21(November 11, 2013)
• ISSN：1520-6041

文摘

A novel dimerization of maleic anhydride involving olefinic to carbonyl C鈥揅 coupling and an [1,7]-H shift is promoted by a strongly nucleophilic pyramidal phosphinidene complex. The resulting carbene is stabilized by coordination of the P atom of the phosphinidene ligand and undergoes keto/enol tautomerization when going from solution to the solid state. This is accompanied by a strong pyramidalization of the ylidic carbon atom, facilitated by the presence of 蟺路路路蟺 stacking interactions in the crystal lattice.