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Coerced conversion: Long utilized as a strong Brønsted base, the tetramethylpiperidine (TMP) anion is forced to convert to a Brønsted acid in the presence of a potassium–aluminate species. The new compound [(TMEDA)K(μ‐TMP*)(μ‐iBu)Al(iBu)] was obtained where TMP* represents a CH3‐ and NH‐deprotonated dianionic variant of TMP (see scheme).
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