Palladium-Catalyzed Multicomponent Carbonylation of Halides to Acylhydrazones.
J Org Chem
; 89(12): 8537-8545, 2024 Jun 21.
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| ID: mdl-38861493
ABSTRACT
The current methods for synthesizing acylhydrazones are limited by their multistep processes, narrow substrate scope, low selectivities, and poor yields. Herein, a fundamentally novel approach to bioactive acylhydrazones was developed based on the palladium-catalyzed multicomponent tandem condensation carbonylation of halides with aldehydes and hydrazines. This method provides a useful and efficient strategy for generating grams of various acylhydrazones in a one-pot manner. Mechanistic studies provided evidence of facile carbonylation of halides with the weak nucleophile hydrazones facilitated by a base.
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J Org Chem
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2024
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Article