Manganese Catalyzed Hydrogenation of Carbamates and Urea Derivatives was written by Das, Uttam Kumar;Kumar, Amit;Ben-David, Yehoshoa;Iron, Mark A.;Milstein, David. And the article was included in Journal of the American Chemical Society in 2019.Formula: C13H24N2O This article mentions the following:
We report the hydrogenation of carbamates and urea derivatives, two of the most challenging carbonyl compounds to be hydrogenated, catalyzed for the first time by a complex of an earth-abundant metal. The hydrogenation reaction of these CO2-derived compounds, catalyzed by a manganese pincer complex, yields methanol in addition to amine and alc., which makes this methodol. a sustainable alternative route for the conversion of CO2 to methanol, involving a base-metal catalyst. Moreover, the hydrogenation proceeds under mild pressure (20 bar). Our observations support a hydrogenation mechanism involving the Mn-H complex. A plausible catalytic cycle is proposed based on informative mechanistic experiments In the experiment, the researchers used many compounds, for example, 1,3-Dicyclohexylurea (cas: 2387-23-7Formula: C13H24N2O).
1,3-Dicyclohexylurea (cas: 2387-23-7) belongs to amides. Compared to amines, amides are very weak bases and do not have clearly defined acid–base properties in water. On the other hand, amides are much stronger bases than esters, aldehydes, and ketones. Ionic, or saltlike, amides are strongly alkaline compounds ordinarily made by treating ammonia, an amine, or a covalent amide with a reactive metal such as sodium.Formula: C13H24N2O
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics