Transfer hydrogenation of aldehydes and ketones catalyzed using an aminophosphinite POCNH pincer complex of Ni(ii). Issue 34 (19th August 2020)

• Record Type: Journal Article
• Authors: Segizbayev, Medet; Öztopçu, Özgür; Hayrapetyan, Davit; Shakhman, Dinmukhamed; Lyssenko, Konstantin A.; Khalimon, Andrey Y.
• Is Part Of: Dalton transactions. Volume 49:Issue 34(2020)
• Page Start: 11950
• Page End: 11957
• Publication Date: 2020-08-19
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d0dt02264k
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : (POCN H )NiBr catalyzes the transfer hydrogenation of aldehydes and ketones in i PrOH. The reactions tolerate alkenes, esters, amides, nitriles, and heterocycles and proceed via the metal–ligand cooperative mechanism through (POCN)Ni II species. Abstract : The aminophosphinite pincer complex (POCN H )NiBr was found to effectively catalyze the transfer hydrogenation of aldehydes and ketones with 2-propanol and KO t Bu as a base, presenting a rare example of bifunctional nickel transfer hydrogenation catalysts. The transfer hydrogenation of aldehydes and ketones was found to be selective, tolerating a wide range of other functional groups, including those prone to reduction, such as esters, amides, alkenes, pyridines, and nitriles. The reactions were suggested to proceed via the metal–ligand cooperative mechanism with an intermediacy of an amido (POCN)Ni II species.