Isolation of a New Silepin with an Imine Ligand Based on Cyclic Alkyl Amino Carbene

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AbstractTo date, there are solely a handful of silacycloheptatriene structures (silepins) based on acyclic silylenes described in the literature. The unique property of such compounds is the interconversion between their silepin and silylene forms, which has raised great interest due to their potential catalytic applications. Herein, we want to report a new silyl substituted silepin with an implemented Cy‐cAAC moiety, presumably enhancing the stability of the respective low‐valent species. In this work, we will demonstrate the synthesis and facile purification of a newly isolated silepin with an imine ligand based on a cyclic alkyl amino carbene as well as its typical silylene‐like behavior towards small molecules.