Domino Benzylic-Amination-Sonogashira-Heterocyclisation Reaction: Direct Access to Dipyrido[1,2-a:3 ',4 '-d]imidazole Salts

[摘要]：A new one-pot domino process, involving four chemical transformations, for the synthesis of new dipyrido[1,2-a:3',4'-d]imidazole salts in a multicomponent reaction is reported. Various dipyrido[1,2-a:3',4'-d]imidazoles were obtained in moderate to good yields. The scope and limitations of the process and the reaction mechanism are discussed.

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