Reaction of Imidoformates with Anthranilates: Facile, One-Pot, Three-Component Synthesis of 8H-Quinazolino[4,3-b]quinazolin-8-ones
摘要:
We report a facile, one‐pot, three‐component methodology for the synthesis of 8H‐quinazolino[4,3‐b]quinazolin‐8‐ones from commercially available 2‐aminobenzonitriles, triethyl orthoformate, and anthranilic acids/esters/amides in good yields.
Palladium(II)-Catalyzed Three-Component Tandem Cyclization Reaction for the One-Pot Assembly of 4-Arylquinazolines
作者:Guolin Zhang、Yongping Yu、Zijuan Wang、Wenteng Chen、Chang He
DOI:10.1055/s-0040-1707329
日期:2021.4
Abstract A one-pot method for joining three separate components leading to an assortment of 4-arylquinazolines (27 examples) in good to excellent yields is described. The method consists of a palladium(II)-catalyzed cascadereaction involving C(sp)–C(sp2) coupling followed by intramolecular C–N bond formation. The reaction was readily scaled up to gram quantity and successfully applied to the synthesis
We report a facile, one‐pot, three‐component methodology for the synthesis of 8H‐quinazolino[4,3‐b]quinazolin‐8‐ones from commercially available 2‐aminobenzonitriles, triethyl orthoformate, and anthranilic acids/esters/amides in good yields.