As two formally divalent organic species, both carbenes [1] and isocyanides [2] have attracted great attention in the synthetic community owing to their high reactivity. The direct reaction between carbenes and isocyanides is expected to produce ketenimines, which are highly useful intermediates in synthetic chemistry [3–9] and conventionally prepared by substitution of ketenes,[4] dehydrohalogenation of imidoyl halides,[5] transformation of ...
