N-Arylation of Amines and Amides Using Copper Salt
Author Information
Author(s): Zheng Zhang-Guo, Wen Jun, Wang Na, Wu Bo, Yu Xiao-Qi
Primary Institution: Key Laboratory of Green Chemistry & Technology (Sichuan University)
Hypothesis
Can arylboroxines be used effectively for the N-arylation of amines, amides, imides, and sulfonamides with a simple copper salt system?
Conclusion
The study developed a simple and efficient method for N-arylation using arylboroxines and a copper salt in ethanol, achieving moderate to excellent yields.
Supporting Evidence
- The copper salt/EtOH system produced N-arylation products in moderate to excellent yields.
- The reaction conditions were optimized for better yields and shorter reaction times.
- The method is base-free and does not require the addition of oxygen.
Takeaway
This study shows a new way to attach aryl groups to amines and similar compounds using a simple copper salt, making the process easier and safer.
Methodology
The study optimized reaction conditions for N-arylation using various copper salts and solvents, focusing on yields and reaction times.
Limitations
The method may not be applicable to all types of substrates, particularly sulfonamides which showed lower yields.
Digital Object Identifier (DOI)
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