Amide motifs are prevalent structures found in natural products, pharmaceuticals, and bioactive compounds. Amide bond formations are the most important transformations in organic chemistry. Beckmann rearrangement is a significant method for the synthesis of primary and secondary amides. Recently, diversified new catalytic protocols were developed, including one-pot reaction from the corresponding aldehydes and ketones, or even from alcohols. The progress and applications of Beckmann rearrangement in recent five years are reviewed.
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