Chan–Lam Amination of Secondary and Tertiary Benzylic Boronic Esters

Autor: Francesca M. Dennis, James D Grayson, Craig C. Robertson, Benjamin M. Partridge
Rok vydání: 2021
Předmět:
Zdroj: The Journal of Organic Chemistry. 86:9883-9897
ISSN: 1520-6904
0022-3263
DOI: 10.1021/acs.joc.1c00976
Popis: We report a Chan-Lam coupling reaction of benzylic and allylic boronic esters with primary and secondary anilines to form valuable alkyl amine products. Both secondary and tertiary boronic esters can be used as coupling partners, with mono-alkylation of the aniline occurring selectively. This is a rare example of a transition-metal-mediated transformation of a tertiary alkylboron reagent. Initial investigation into the reaction mechanism suggests that transmetalation from B to Cu occurs through a single-electron, rather than a two-electron process.
Databáze: OpenAIRE