Copper-Promoted Tandem Three-Component Access to Quinazolin-4(H)-imines and Benzimidazo[1,2-c]quinazolines - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Advanced Synthesis and Catalysis Année : 2019

Copper-Promoted Tandem Three-Component Access to Quinazolin-4(H)-imines and Benzimidazo[1,2-c]quinazolines

Résumé

A copper-catalyzed three-component assembly of cyanamides, 2-cyanoarylboronic acids and amines has been developed, providing functionalized quinazolin-4(H)-imines. Subsequent access to benzimidazo[1,2-c]quinazolines is achieved building again on copper-catalysis. One pot hydrolysis of quinazolin-4(H)-imines to quinazolin-4(3H)-ones is also described. Guanidine formation, cyclization and intramolecular C-H bond amination are key features of the process fully mediated by copper.
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hal-03032883 , version 1 (01-12-2020)

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Romain Rodrigues, Lam Quang Tran, Benjamin Darses, Philippe Dauban, Luc Neuville. Copper-Promoted Tandem Three-Component Access to Quinazolin-4(H)-imines and Benzimidazo[1,2-c]quinazolines. Advanced Synthesis and Catalysis, 2019, 361 (19), pp.4454-4460. ⟨10.1002/adsc.201900658⟩. ⟨hal-03032883⟩
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