Synthesis of 2‐Trifluoromethyl Pyridines through Multicomponent Kröhnke Reaction
Biqiong Hong,
Yun Teng,
Zheng Fang
et al.
Abstract:A multicomponent Kröhnke reaction route toward 2‐trifluoromethyl pyridines from reaction of chalcones with easily available and stable 1‐(3,3,3‐trifluoro‐2‐oxopropyl)pyridin‐1‐ium bromide and ammonium acetate is reported. The reaction is found to be general with a range of substituted chalcones, and the applicability of the methodology in gram scale is demonstrated. Preliminary results suggest that this transformation is initiated by 1,4‐Michael addition, followed by inter‐ and intramolecular nucleophilic add… Show more
Set email alert for when this publication receives citations?
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.