Bimetallic Aluminum Hydride s-Block (Li, Na, K) Compounds in Catalytic Hydroboration.
- 1General and Inorganic Chemistry Department, University of Saarland, Campus C4.1, 66123Saarbruecken, Germany.
- 2Institut de Química Computacional i Catàlisi, Departament de Química, Universitat de Girona, c/M. Aurelia Capmany 69, 17003Girona, Spain.
- 3Department for Chemistry, Biochemistry and Pharmaceutical Science, University of Bern, 3012Bern, Switzerland.
Abstract
Hydroboration is an important transformation for preparing synthetic intermediates that participate in numerous reactions. While traditionally catalyzed by transition metals, the pursuit of more sustainable methodologies has prompted the development of catalysts based on earth-abundant elements. Aluminum hydrides have been employed as (pre)catalysts for the hydroboration of unsaturated functional groups, exhibiting enhanced activity in their ate complexes through alkali-metal cooperativity, yet the identity of the active species, particularly in carbonyl hydroboration, remains under debate. Herein, we report the isolation and full characterization of a series of alkali metal (Li, Na, and K) aluminate hydride complexes with bis(aminophosphino-borane)naphthalene as a supporting ligand. We explore and benchmark their catalytic activity in the hydroboration of benzophenone and phenylacetylene using pinacolborane (HBpin). The role of the aluminates, the origin of synergistic effects, and the proposed reaction mechanisms are examined through stoichiometric studies, the isolation of intermediates, and DFT calculations.
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BibTeX
@article{sabater2026bimetallic,
title = {{Bimetallic Aluminum Hydride s-Block (Li, Na, K) Compounds in Catalytic Hydroboration.}},
author = {Enric Sabater and Benedikt Meiser and Daniel Schroeder and Bernd Morgenstern and Eva Hevia and Diego M Andrada},
journal = {Inorganic chemistry},
year = {2026},
month = oct,
doi = {10.1021/acs.inorgchem.6c02398},
url = {https://europepmc.org/article/MED/42895416},
note = {CC BY},
}
RIS
TY - JOUR
TI - Bimetallic Aluminum Hydride s-Block (Li, Na, K) Compounds in Catalytic Hydroboration.
AU - Enric Sabater
AU - Benedikt Meiser
AU - Daniel Schroeder
AU - Bernd Morgenstern
AU - Eva Hevia
AU - Diego M Andrada
PY - 2026
DA - 2026/10/01
JO - Inorganic chemistry
DO - 10.1021/acs.inorgchem.6c02398
UR - https://europepmc.org/article/MED/42895416
AB - Hydroboration is an important transformation for preparing synthetic intermediates that participate in numerous reactions. While traditionally catalyzed by transition metals, the pursuit of more sustainable methodologies has prompted the development of catalysts based on earth-abundant elements. Aluminum hydrides have been employed as (pre)catalysts for the hydroboration of unsaturated functional groups, exhibiting enhanced activity in their ate complexes through alkali-metal cooperativity, yet the identity of the active species, particularly in carbonyl hydroboration, remains under debate. Herein, we report the isolation and full characterization of a series of alkali metal (Li, Na, and K) aluminate hydride complexes with bis(aminophosphino-borane)naphthalene as a supporting ligand. We explore and benchmark their catalytic activity in the hydroboration of benzophenone and phenylacetylene using pinacolborane (HBpin). The role of the aluminates, the origin of synergistic effects, and the proposed reaction mechanisms are examined through stoichiometric studies, the isolation of intermediates, and DFT calculations.
SN - 0020-1669
SN - 1520-510X
ER -