trans-1,2-cyclohexanediamine; potassium carbonate; copper(l) chloride in 1,4-dioxane T=110°C; 15 h; Inert atmosphereDarkness;

copper(l) iodide; potassium carbonate; 1,2-diamino-cyclohexane in 1,4-dioxane T=110°C; 23 h;