“…[1] In this context, the oxidative carbonylation of amines to obtain ureas (Scheme 1) has received much interest over the past 50 years [2] as an alternative to the traditional phosgenation process. [3] The reactioni sp erformed in the presenceo fametal catalysto ro rganocatalyst, an oxidizing agents uch as I 2 [1,4] or O 2 /air, [5] and CO pressure. Among transition metals and organocatalysts, Mn, [2] Pd, [4c, 5h-q, 6] Cu, [5a, 7] Au, [5b-c] Co, [5d-e] W [1, 4a-b] Ni, [5f] Rh, [5g] Ru, [5h] S, [8] and Se [9] are effective.…”