-butoxide as the base is reported. This method provides efficient access to a variety of difluoromethylated compounds under mild conditions without the need for transition metal catalysts or molecular hydrogen. The reaction exhibits a broad substrate scope, tolerating electron-donating and -withdrawing groups, as well as heterocyclic, nitro, and cyano functionalities. Mechanistic studies suggest that the reaction proceeds via base-mediated enolization and olefin migration to form a conjugated intermediate, followed by hydride transfer from the Hantzsch ester. Gram-scale synthesis and diverse product derivatization highlight the practical utility of this approach.
No takes yet. Share an insight, caveat, or question.
Zhang et al. (2026) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: