Efficient Hydrogen Production from Alcohols under Mild Reaction Conditions

Abstract

Run out of gas? A protocol for the title transformation under mild reaction conditions has been developed. Highest activities are found with an in situ catalyst system consisting of a 1:1 mixture of an HPNPiPr ligand and [RuH2(PPh3)3CO]. A turnover frequency of up to 14 145 h−1 and turnover number of more than 40 000 have been achieved for production of hydrogen gas from isopropyl alcohol.

C‐Alkylation of Ketones and Related Compounds by Alcohols: Transition‐Metal‐Catalyzed Dehydrogenation

“…[102][103][104] [105] An additive such as Mg 3 N 2 may switch the reaction pathway. [106] Under palladium [107] or cobalt [108] catalysis under oxygen, oxidative cross-esterification of benzyl alcohols was realized [Eq.…”

Lactic acid and hydrogen from glycerol via acceptorless dehydrogenation using homogeneous catalysts

“…Up to 67% glycerol yield was obtained under optimized experimental conditions (140 °C, 24h, 1eq water, 1.08 eq NaOH and NMP as solvent). The same class of ruthenium complexes have been successfully applied in the already mentioned low temperature methanol reforming [34] (figure 2) as well as the dehydrogenation of other alcohols [41,[68][69][70][71]. An analogous mechanistic pathway to that proposed by Crabtree et al for lactic acid formation has been postulated.…”

β‐Hydrogen Elimination Reactions of Nickel and Palladium Methoxides Stabilised by PCP Pincer Ligands

“…(1)] and the reaction of the hydride with methanol [Eq. (2)] would lead to a catalytic cycle for the dehydrogenation of methanol22 but, in practice, the competing decay of the methoxide complex prevents the progress of such a catalytic process to a significant degree , …”