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Reaction of Titanacyclobutene–Silacyclobutene Fused-Ring Complexes with Nitriles via Formal Insertion of the C–N Triple Bond of Nitrile into the Silacyclobutene Ring

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posted on 13.01.2014, 00:00 by Jing Zhao, Shaoguang Zhang, Wen-Xiong Zhang, Zhenfeng Xi
The reaction of titanacyclobutene–silacyclobutene fused-ring complexes with nitriles was investigated. Formal insertion of the C–N triple bond of nitriles into the silacyclobutene ring was observed, affording their corresponding titanacyclobutene and six-membered azasilacycle fused-ring complexes. This reaction pattern with nitriles is totally different from that of their analogous zirconacyclobutene–silacyclobutene fused-ring complexes. The size effect of the central metals (Ti vs Zr) is considered as the major reason for the different reaction patterns.

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