Abstract

Diphosphino-functionalized 1,3-dialkylimidazolium salts react with KOH affording amine/formamide open-chain products, which fully revert to the imidazolium cation by treatment with a variety of acids or are converted to 2-imidazolones by noncatalyzed intramolecular dehydrogenative C-N coupling, a process that is modulated by coordination of the phosphino functionalities to transition metals.

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