C( sp 3 )−C( sp 3 ) Bond Formation via Electrochemical Alkoxylation and Subsequent Lewis Acid Promoted Reactions

Autor: Jesús Alcázar, Adrian P. Dobbs, Antonio de la Hoz, Raúl Martín, Angel Díaz-Ortiz, Alessia Petti, Enol López, Carlo G. W. van Melis, Kevin Lam
Rok vydání: 2021
Předmět:
Zdroj: Advanced Synthesis & Catalysis. 363:4521-4525
ISSN: 1615-4169
1615-4150
Popis: A new and practical two-step transition metal-free methodology for the C(sp3)-C(sp3) functionalisation of saturated N-heterocyclic systems is disclosed. First, aminal derivatives are generated through the anodic oxidation of readily accessible carboxylic acids. Then, in the presence of BF3·OEt2, iminium ions are unmasked and rapidly alkylated by organozinc reagents under flow conditions. Secondary, tertiary and quaternary carbon centers have been successfully assembled using this new methodology. Such an approach is especially relevant to drug discovery since it increases C(sp3)-functionalities rapidly within a molecular framework. As proof of concept, our new methodology was applied to derivatization of peptides and an API.
Databáze: OpenAIRE