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NHC me, now you don′t: A tridentate bis(aryloxide)NHC-chelating ligand readily coordinates to ZrIV and undergoes an unprecedented THF-promoted benzyl migration from the zirconium metal center to the Ccarbene atom of the NHC. NHC=N-heterocyclic carbene.
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Romain et al. (2010) studied this question.
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