Pyrazaboles and pyrazolylboranes

[Display omitted] •Pyrazaboles, indazaboles and 1-pyrazolylboranes: origins, synthesis and reactivity.•Physicochemical properties: solubility, DSC, TGA, dipole moments, redox and spectroscopies other than NMR.•Multinuclear (1H, 13C, 10/11B, 14/15N, 19F) NMR spectroscopy: and X-ray crystallography st...

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Bibliographic Details
Published in:Coordination chemistry reviews 2022-12, Vol.473, p.214812, Article 214812
Main Authors: Nieto, Carla I., Sanz, Dionisia, Claramunt, Rosa M., Alkorta, Ibon, Elguero, José
Format: Article
Language:English
Subjects:
Borotropy
Pyrazaboles
Pyrazolylboranes
Scorpionates
X-ray structures
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Summary:[Display omitted] •Pyrazaboles, indazaboles and 1-pyrazolylboranes: origins, synthesis and reactivity.•Physicochemical properties: solubility, DSC, TGA, dipole moments, redox and spectroscopies other than NMR.•Multinuclear (1H, 13C, 10/11B, 14/15N, 19F) NMR spectroscopy: and X-ray crystallography structural studies.•Theoretical calculations: aromaticity, structure and conformation, reactivity, borotropy, and excited states. The synthesis, reactivity, and properties of pyrazaboles and pyrazolylboranes have been reviewed with special attention to the NMR properties and X-ray structures. 104 X-ray structures are presented and 150 references are cited, which is a significant expansion of previous reviews. It appears that several items are incomplete and others deserve further development indicating than the field of pyrazaboles and of pyrazolylboranes needs new research contributions in particular in the field of coordination chemistry, a field that is clearly underdeveloped.
ISSN:0010-8545
1873-3840
DOI:10.1016/j.ccr.2022.214812