A Powerful Cascade Approach for Expeditious Synthesis of Trifluoromethylated Furans
摘要:
A powerful approach to synthesize trifluoromethylated furans has been developed. The method is operationally simple, broad in substrate scope, and amenable to scale-up using trifluoroacetic anhydride. Meanwhile, the strategy not only provided a versatile approach to synthesize trifluoromethylated furans but also provides a new method for exploring the new reactivity of trifluoroacetic anhydride.
A Powerful Cascade Approach for Expeditious Synthesis of Trifluoromethylated Furans
摘要:
A powerful approach to synthesize trifluoromethylated furans has been developed. The method is operationally simple, broad in substrate scope, and amenable to scale-up using trifluoroacetic anhydride. Meanwhile, the strategy not only provided a versatile approach to synthesize trifluoromethylated furans but also provides a new method for exploring the new reactivity of trifluoroacetic anhydride.
Triplet Energy Transfer Mechanism in Copper Photocatalytic <i>N</i>‐ and <i>O</i>‐Methylation
作者:Martijn Hoving、Jacob‐Jan Haaksma、Anne Stoppel、Lukas Chronc、Jonas Hoffmann、Sebastian B. Beil
DOI:10.1002/chem.202400560
日期:2024.4.16
We investigated the photochemical energy transfer mechanism of hypervalent iodine reagents. When coupled to copper catalysis we achieved successful methylation of a diverse set of N-heterocycles and (hetero−)aromatic carboxylic acids. In addition, we could show application of this methodology to more complex active pharmaceuticalintermediates. Mechanistic investigations support our observations and