Domino Condensation/S-Arylation/Heterocyclization Reactions: Copper-Catalyzed Three-Component Synthesis of 2-N-Substituted Benzothiazoles
作者:Dawei Ma、Xu Lu、Liu Shi、Hui Zhang、Yongwen Jiang、Xiangqian Liu
DOI:10.1002/anie.201005787
日期:2011.2.1
in it together: A highly efficient and extremely versatile method for the assembly of benzothiazoles with a nitrogen substituent in the 2‐position relies on a copper‐catalyzed cascade reaction of a 2‐haloaniline, carbon disulfide, and an N nucleophile (see scheme). The products are useful precursors for the synthesis of a range of important pharmaceutical agents. DMF=N,N‐dimethylformamide; R,R′=H, alkyl