Mechanochemical Grignard Reactions with Gaseous CO(2) and Sodium Methyl Carbonate

A one‐pot, three‐step protocol for the preparation of Grignard reagents from organobromides in a ball mill and their subsequent reactions with gaseous carbon dioxide (CO(2)) or sodium methyl carbonate providing aryl and alkyl carboxylic acids in up to 82 % yield is reported. Noteworthy are the short...

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Detalles Bibliográficos
Autores principales: Pfennig, Victoria S., Villella, Romina C., Nikodemus, Julia, Bolm, Carsten
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9306648/
https://www.ncbi.nlm.nih.gov/pubmed/34942056
http://dx.doi.org/10.1002/anie.202116514
Descripción
Sumario:A one‐pot, three‐step protocol for the preparation of Grignard reagents from organobromides in a ball mill and their subsequent reactions with gaseous carbon dioxide (CO(2)) or sodium methyl carbonate providing aryl and alkyl carboxylic acids in up to 82 % yield is reported. Noteworthy are the short reaction times and the significantly reduced solvent amounts [2.0 equiv. for liquid assisted grinding (LAG) conditions]. Unexpectedly, aryl bromides with methoxy substituents lead to symmetric ketones as major products.

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