From haemoglobin to single-site hydrogenation catalyst
نویسندگان
چکیده
A single-site Fe catalyst was prepared from bio-based precursors: xylose and haemoglobin. Its catalytic activity, selectivity, recyclability for nitroarene transfer hydrogenation using isopropanol, benzimidazole preparation, is reported.
منابع مشابه
Single-Event MicroKinetics of Aromatics Hydrogenation on a Pt catalyst
A fundamental single-event microkinetic (SEMK) model for the hydrogenation of aromatic components on a Pt catalyst has been developed. It is based on the Horiuti-Polanyi mechanism considering atomic hydrogen addition steps to the (partially hydrogenated) aromatic species on the catalyst surface. The reaction network used accounts for the position at which the hydrogen atoms are added to the rin...
متن کاملHeck, direct arylation, and hydrogenation: two or three sequential reactions from a single catalyst.
Palladium-catalyzed tandem multifunctional reactions leading to the synthesis of substituted biaryl molecules have been developed including tandem Heck-direct arylation and tandem-sequential Heck-direct arylation-hydrogenation. These reactions occur in good yield and have been employed in the synthesis of a cytotoxic biaryl compound.
متن کاملSurface structural-chemical characterization of a single-site d0 heterogeneous arene hydrogenation catalyst having 100% active sites.
Structural characterization of the catalytically significant sites on solid catalyst surfaces is frequently tenuous because their fraction, among all sites, typically is quite low. Here we report the combined application of solid-state (13)C-cross-polarization magic angle spinning nuclear magnetic resonance ((13)C-CPMAS-NMR) spectroscopy, density functional theory (DFT), and Zr X-ray absorption...
متن کاملA stable 16-electron iridium(III) hydride complex grafted on SBA-15: a single-site catalyst for alkene hydrogenation.
The dihydride pincer complex [IrH2(POCOP)] reacts with surface silanols of mesoporous silica (SBA-15) to give the coordinatively unsaturated, yet stable hydridesiloxo Ir(III) species [IrH(O-SBA-15)(POCOP)]. The silica-grafted complex catalyses the hydrogenation of ethene and propene at low temperature and pressure without prior activation.
متن کاملPhotoswitching a molecular catalyst to regulate CO2 hydrogenation.
Inspired by nature's ability to regulate catalysis using physiological stimuli, azobenzene was incorporated into Rh(bis)diphosphine CO2 hydrogenation catalysts to photoinitiate structural changes to modulate the resulting catalytic activity. The rhodium bound diphosphine ligands (P(Ph2)-CH2-N(R)-CH2-P(Ph2)) contain the terminal amine of a non-natural amino acid, with the R-group being either β-...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Green Chemistry
سال: 2022
ISSN: ['1463-9262', '1463-9270']
DOI: https://doi.org/10.1039/d2gc02344j