Synthesis of Known and Previously Inaccessible Poly(pyrazolyl)Borates under Mild Conditions.

Poly(pyrazolyl)borate ligands have been obtained through the reaction of highly reactive haloboranes with in situ formed pyrazolides under very mild conditions. This versatile synthetic method allows the selective synthesis of bis-, tris-, or tetrakis(pyrazolyl)borates. Furthermore, the method is compatible with the use of functional groups on the heterocyclic moieties of the poly(pyrazolyl)borates that were not accessible to date. Strongly encumbered sodium and thallium(I) poly(pyrazolyl)borates with a reduced donating ability have been obtained for the first time.

Citation

María M Melero, Zuzanna Kłosek, Carmen Ramírez de Arellano, Andrea Olmos. Synthesis of Known and Previously Inaccessible Poly(pyrazolyl)Borates under Mild Conditions. The Journal of organic chemistry. 2023 Jul 07;88(13):9130-9135

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PMID: 37345738

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