Sequential Regioselective C–H Functionalization of Thiophenes
Organic Letters(2016)
Abstract
Herein, the sequential functionalization of 5-membered ring heterocycles is disclosed. By employing a pH sensitive directing group both directed and nondirected C–H activation pathways are available, providing access to 2,3,4- and 2,4,5-substituted thiophenes. The C–H arylation was performed in water, and using a surfactant greatly improved the yield and mass recovery. The use of a directing group with an on/off switch offers a potentially powerful means of generating diversity around medicinally relevant cores.
MoreTranslated text
Key words
thiophenes
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined