Recent Advances in Regioselective C-H Bond Functionalization of Free Phenols
Yanan Li1, Yekai Huang1, Zhi Li1
1School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China.
Abstract:
Phenols are important readily available synthetic building blocks and starting materials for organic synthetic transformations, which are widely found in agrochemicals, pharmaceuticals, and functional materials. The C-H functionalization of free phenols has proven to be an extremely useful tool in organic synthesis, which provides efficient increases in phenol molecular complexity. Therefore, approaches to functionalizing existing C-H bonds of free phenols have continuously attracted the attention of organic chemists. In this review, we summarize the current knowledge and recent advances in ortho-, meta-, and para-selective C-H functionalization of free phenols in the last five years.
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