A novel catalytic method for the straightforward hydrogenation of carboxamides and esters to primary alcohols has been developed. Chiral modification in ligand sphere well-defined Cp*Ru catalyst molecule opens up a new possibility development an enantioselective racemic substrates via dynamic kinetic resolution.

Abstract Hydrogenation of carbon dioxide to formate was achieved using copper (Cu) catalysts in the presence strong organic bases including amidines and guanidines. Specifically, 1,8‐diazabicyclo[5.4.0]undec‐7‐ene (DBU) proved be effective for transformation a 1:1 mixture hydrogen into its salt under increased pressure various Cu(I) Cu(II) salts at 100 °C. A novel complex derived from iodide DBU equally promoted same reaction, indicating that DBU–Cu species are involved as real this...

Abstract The catalytic hydrogenation of carbon−oxygen bonds by copper‐based catalysts has made significant progress in the past decade. Broad carbonyl compounds, such as aldehydes, ketones, carboxylic acids and their derivatives, CO 2 have been subjected to heterogeneous homogeneous systems. Although copper used established industrial processes, recent catalyst design focusing on (i) novel supports, (ii) controlled nanostructure species, (iii) bimetallic active site combination with improved...

The utilization of polymeric amines for the hydrogenation CO 2 to methanol via formamides was explored with a focus on catalytic promoter, as well beneficial reaction medium enhanced basicity. Branched and linear poly(ethyleneimine)s (PEIs) were efficiently formylated in presence series PN H P‐pincer Ru complexes under conditions at 100 °C THF. obtained N ‐formylated PEI characterized by NMR spectroscopy. formamide units polymer reduced higher temperature pressurized afford recover starting...

Abstract An amidine base‐containing polymer, polystyrene‐bound 1,8‐diazabicyclo[5.4.0]undec‐7‐ene (PS‐DBU), proved to serve as a prominent catalyst support. The combined use of selected copper salts with PS‐DBU in the catalytic hydrogenation acetophenone qualifies DBU beneficial generate catalytically active species and stabilize them on polymer. Catalyst preparation characterization reveal that is low‐valent state nanosized particles possibly grow structure. high immobilization ability...

Synthesis of a Cp*Ru complex bearing an NH2-functionalized N-heterocyclic carbene (C–NH) was achieved by treatment Cp*RuBr(isoprene) with equimolar amount silver complex, which generated from Ag2O and 1-(2-aminoethyl)-3-methylimidazolium bromide, in CH3CN at room temperature. The new Cp*RuBr(C–NH) showed higher catalytic performance than the related Cp*RuCl(P–NH) Cp*RuCl(N–NH) complexes. In reaction N-arylcarboxamides, amine products were obtained satisfactory yields under mild temperature...

Mononuclear Cu(II) complexes bearing a bidentate bisamidine ligand were newly synthesized and characterized. The catalytic activity was evaluated in the hydrogenation of carbon dioxide to formate salts. A substantial enhancement catalyst turnover number achieved by imidazoline-based complex, indicating that amidines serve as effective ancillary ligands for homogeneous copper catalysis.

Hydrogenation of CO 2 promoted by heterogeneous metal catalysts has found commercial applications. Furthermore, homogeneous based on transition complexes have also been demonstrated to be useful in the conversion formate under relatively mild reaction conditions. In course our study aimed uncover availability copper complexes, we focused ligand acceleration effect hydrogenation reaction. Improved yield and catalytic activity were obtained adding selected bisoxazoline ligands a catalyst...

Direct formation of Cu nanoparticles was accomplished on an amidine- and guanidine-functionalized polymer (polystyrene-bound 1,8-diazabicyclo[5.4.0]undec-7-ene (PS-DBU) 1,5,7-triazabicyclo[4.4.0]dec-5-ene (PS-TBD), respectively) by thermal treatment Cu(acac)2 (acac = acetylacetonato) in methanol under pressurized H2. The immobilized structure characterized inductively coupled plasma atomic emission spectroscopy (ICP-AES), elemental analysis, microscopic analysis. X-ray photoelectron (XPS)...

Cationic Mn(CO) 3 complexes having a protic amine ligand with cyclic amidine side arms were prepared and their catalytic properties of transfer hydrogenation acetophenone electrochemical reduction CO 2 compared.

Abstract A method for the straightforward hydrogenation of carboxamides and esters to primary alcohols is developed.

The Cover Feature shows that copper nanoparticles grown on polystyrene-bound 1,8-diazabicyclo[5.4.0]undec-7-ene (PS-DBU) can catalyze the hydrogenation of ketones and aldehydes. In their Full Paper, R. Watari et al. demonstrate PS-DBU provides a suitable environment for formation stabilization catalytically active Cu species. prepared exhibit high catalytic activity with negligible leaching, robustness, good recyclability, broad functionality tolerance. These results potential as an...

This study examined the entrepreneurship potential of soap production as a side business for rice farmers from rural Tanzania. To this end, we analysed profitability in Tanzania by comparing small-scale urban centres to that rice-growing regions. The various factors considered included transportation costs, raw material prices, and marketability. Data areas were obtained through interviews with manufacturers. findings showed regions south-central Tanzania, average distance nearest emerging...

Purpose: This study examines soap production’s entrepreneurship potential and profitability as a supplementary business for rural rice farmers in Tanzania to promote their economic independence.
 Design/ Methodology/ Approach: We randomly sampled interviewed about ten small-scale manufacturers urban gathered from 2019-2021 develop production strategy at similar scale. Considering the Voronoi theory, we calculated distance areas centres determine transportation costs, which particularly...