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Pincer compounds containing a central pyrrole linked through methylene groups in the 2,5-positions to two N-imidazole, N-pyrazole and N-1,2,4-triazole heterocyles have been prepared via a common quaternary amine precursor. Alkylation of the imidazole groups using methyl iodide or benzyl bromide gave imidazolium compounds. The methylated iodide salt was characterised crystallographically, showing significant...
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