Designing effective homogeneous catalysis for glycerol valorisation: selective synthesis of a value-added aldehyde from 1,3-propanediol via hydrogen transfer catalysed by a highly recyclable, fluorinated Cp*Ir(NHC) catalyst

Abstract

Designing effective homogeneous catalysis for glycerol valorisation: selective synthesis of a value-added aldehyde from 1,3-propanediol via hydrogen transfer catalysed by a highly recyclable, fluorinated Cp*Ir(NHC) catalyst.

Glycerol valorization to lactic acid catalyzed by hydroxyapatite‐supported palladium particles

“…Glycerol, with three functional hydroxyl groups, allows various selective catalytic transformations to chemicals (e.g. acrolein, acrylic acid, propanediol and lactic acid). Notably, glycerol selective oxidation to lactic acid has received growing attention, because it supports a new chemical route for large‐scale lactic acid production.…”

Conversion of haloform to carbonate by iridium N-heterocyclic carbene complexes and silver(i) oxide

“…Andrew C. Marr , a Patrick J. Morgan, a Graham C. Saunders * b and Hayden P. Thomas b The reaction between haloform, the complexes [Cp*IrCl 2 (κC-MeNC 3 H 2 NCH 2 Ar)] (Ar = C 6 H 3 F 2 -2,6, C 6 Pentamethylcyclopentadienyl imidazol-2-ylidene iridium complexes, Cp*Ir(NHC), display interesting reactivity, such as activation of alkyl carbon-hydrogen bonds 1,2 and carbonfluorine bonds, 3 and catalytic activity, including water oxidation, 4,5 transfer hydrogenation, 6,7 dynamic kinetic resolution, 8 hydrogen transfer initiated dehydration, 9 the alkylation of amines, 10 and dehydrogenative oxidation of alcohols. 11 Cyclometallation involving carbon-hydrogen bond activation induced by base has been reported for NHC ligands bearing aryl, benzyl and alkyl substituents.…”

Basic Ionic Liquid Gels for Catalysis: Application to the Hydrogen Borrowing Mediated Dehydration of 1,3-Propanediol

“…HTID reactions were performed by a modification of the procedure detailed in our literature. 9,10 1,3-Propanediol (1.25 g, 0.0164 mol), C2 (0.135 g, 0.236 mmol), [P6,6,6,14][OH] SiO2 gel G1, G2 or G3 (for quantities see Table S6), and [C2mmim][NTf2] (2.9 g, 0.0071 mol) were mixed in a 50 mL round bottom flask connected, through a distillation condenser, to a 50 mL glass tube. The mixture was maintained at 150 °C, at a controlled pressure of ca.…”

“…) in 1ethyl-2,3-dimethyl-imidazolium-N,N-bistriflimide [C2mmim][NTf2] 10. Hydrogen Borrowing Ir(III) Catalysts C1 and C2.…”