Cascade synthesis of azoquinazolinones by Cu(I)-catalyzed C–N coupling/C–H activation/C–N formation reactions under O2

A ‘one-pot’ method has been developed for the synthesis of azoquinazolinones from substituted 2-halo-benzamides and different N-heterocycles via Cu(I)-catalyzed C–N coupling/C–H activation/C–N formation process under O2. A number of azoquinazolinones containing different azole rings and substituents were obtained in good yields.

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