Categories: C=O Bond Formation >
Synthesis of hydrazides
A facile synthesis of hydrazides from N-tosylhydrazones under metal-free conditions was suitable for different substrates and tolerated various substituents. In a subsequent step, a series of indazolones could be prepared from corresponding o-bromobenzohydrazides under mild conditions.
S. Zhang, Q. Zhang, M. Tang, J. Org. Chem., 2022, 87, 3845-3850.