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A novel palladium-catalyzed Suzuki cross-coupling reaction of arylhydrazine with aryl boronic acid is described, which affords the corresponding biaryl compounds in good yields. This transformation proceeds through a CNHNH 2 bond activation under green conditions.
A simple metal-free route for the N-alkylation of tosylhydrazones is described via the NaOMe-promoted reductive coupling of tosylhydrazones under mild conditions. A wide variety of N-alkylated tosylhydrazones were obtained in moderate to good yields.
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