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Inside Cover: Direct Evidence for a [4+2] Cycloaddition Mechanism of Alkynes to Tantallacyclopentadiene on Dinuclear Tantalum Complexes as a Model of Alkyne Cyclotrimerization (Chem. Eur. J. 32/2015). Issue 32 (23rd July 2015)
Record Type:
Journal Article
Title:
Inside Cover: Direct Evidence for a [4+2] Cycloaddition Mechanism of Alkynes to Tantallacyclopentadiene on Dinuclear Tantalum Complexes as a Model of Alkyne Cyclotrimerization (Chem. Eur. J. 32/2015). Issue 32 (23rd July 2015)
Main Title:
Inside Cover: Direct Evidence for a [4+2] Cycloaddition Mechanism of Alkynes to Tantallacyclopentadiene on Dinuclear Tantalum Complexes as a Model of Alkyne Cyclotrimerization (Chem. Eur. J. 32/2015)
Abstract : A dinuclear tantalum metallacyclopentadiene complex reacts with 2‐butyne to form a dinuclear tantalum complex bearing a dianionic C6 Et4 Me2 ligand through the intermolecular [4+2] cycloaddition pathway. The picture uses scuba diving to illustrate the transition state of the [4+2] cycloaddition reaction. Six divers symbolize the ring‐constructing carbon atoms and are forming a circle hand in hand as they are gathering around two turtles. For more details see the Full Paper by H. Tsurugi, K. Mashima, and co‐workers on page 11369 ff.