Reshuffle Bonds by Ball Milling: A Mechanochemical Protocol for Charge-Accelerated Aza-Claisen Rearrangements

Autor: Christian Schumacher, Lieselotte Fritz, Lena M. Hanek, Vitali Sidorin, Daniel Brüx, Carsten Bolm
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Molecules, Vol 28, Iss 2, p 807 (2023)
Druh dokumentu: article
ISSN: 1420-3049
DOI: 10.3390/molecules28020807
Popis: This study presents the development of a mechanochemical protocol for a charge-accelerated aza-Claisen rearrangement. The protocol waives the use of commonly applied transition metals, ligands, or pyrophoric Lewis acids, e.g., AlMe3. Based on (heterocyclic) tertiary allylamines and acyl chlorides, the desired tertiary amides were prepared in yields ranging from 17% to 84%. Moreover, the same protocol was applied for a Belluš–Claisen-type rearrangement resulting in the synthesis of a 9-membered lactam without further optimization.
Databáze: Directory of Open Access Journals
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