Efficient transfer hydrogenation of carbonyl compounds catalyzed by selenophenolato hydrido iron(II) complexes

2019 ◽  
Vol 124 ◽  
pp. 32-35 ◽  
Author(s):  
Yangyang Wang ◽  
Zhengyin Du ◽  
Tingting Zheng ◽  
Hongjian Sun ◽  
Xiaoyan Li
Keyword(s):  
Carbonyl Compounds ◽  
Transfer Hydrogenation ◽  
Efficient Transfer

CNN pincer ruthenium complexes for efficient transfer hydrogenation of biomass-derived carbonyl compounds

2020 ◽  
Vol 49 (2) ◽  
pp. 453-465 ◽  
Author(s):  
Rosario Figliolia ◽  
Paolo Cavigli ◽  
Clara Comuzzi ◽  
Alessandro Del Zotto ◽  
Denise Lovison ◽  
...  
Keyword(s):  
Carbonyl Compounds ◽  
Ruthenium Complexes ◽  
Transfer Hydrogenation ◽  
Efficient Transfer

Robust and easily accessible CNNOMe pincer ruthenium complexes show unprecedented selectivity and productivity in the TH of lignocellulose-derived carbonyl compounds with 2-propanol.

Recyclable Covalent Triazine Framework-based Ru Catalyst for Transfer Hydrogenation of Carbonyl Compounds in Water

2019 ◽  
Vol 7 (9) ◽  
pp. 8893-8899 ◽  
Author(s):  
Sudakar Padmanaban ◽  
Gunniya Hariyanandam Gunasekar ◽  
Mearae Lee ◽  
Sungho Yoon
Keyword(s):  
Carbonyl Compounds ◽  
Transfer Hydrogenation ◽  
Ru Catalyst ◽  
Covalent Triazine Framework

scholarly journals Catalytic Activity of High-Surface-Area Amorphous MgO Obtained from Upsalite

Catalysts ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1338
Author(s):  
Marek Gliński ◽  
Ewa M. Iwanek (nee Wilczkowska) ◽  
Urszula Ulkowska ◽  
Agnieszka Czajka ◽  
Zbigniew Kaszkur
Keyword(s):  
Surface Area ◽  
Carbonyl Compounds ◽  
Main Product ◽  
High Surface ◽  
High Surface Area ◽  
Hydrogenation Reaction ◽  
Transfer Hydrogenation ◽  
Reaction Conditions ◽  
Synthesis Conditions ◽  
Transfer Hydrogenation Reaction

The first aim of the research was to synthesize a pure Upsalite, which is an amorphous form of MgCO3, by modifying a procedure described in the literature, so that it would be the precursor of a high-surface, amorphous magnesium oxide. The results indicate that within the studied reaction conditions, the type of alcohol used as the reactant has the most pronounced effect on the yield of reaction. From the two alcohols that led to the highest yield of Upsalite, methanol gave a substantially larger surface area (794 vs. 191 m2 g−1). The optimized synthesis conditions of Upsalite were used to obtain MgO via thermolysis, whose activity in the transfer hydrogenation reaction (THR) from ethanol, 2-propanol and 2-pentanol to various carbonyl compounds was determined. The optimal conditions for the thermolysis were as follows: vacuum, T = 673 K as the final temperature, and a heating rate of 2 deg min−1. The high-surface, amorphous magnesia (SBET = 488 m2 g−1) was found to be a very selective catalyst to 4-t-butylcyclohexanone in THR, which led to a diastereoselectivity of over 94% to the E-isomer of 4-t-butylcyclohexanol for more than 3 h, with conversions of up to 97% with either 2-propanol or 2-pentanol as the hydrogen donor. In the case of acrolein and 2-n-propylacrolein being used as the hydrogen acceptors, the unsaturated alcohol (UOL) was the main product of the reaction, with higher UOL yields noted for ethanol than 2-propanol.

Iron and chromium MOFs as sustainable catalysts for transfer hydrogenation of carbonyl compounds and biomass conversions

2020 ◽  
Vol 44 (20) ◽  
pp. 8223-8231 ◽  
Author(s):  
Punitharaj Vasanthakumar ◽  
Dharmalingam Sindhuja ◽  
Duraisamy Senthil Raja ◽  
Chia-Her Lin ◽  
Ramasamy Karvembu
Keyword(s):  
Carbonyl Compounds ◽  
Transfer Hydrogenation

Fe and Cr based MOFs (MIL-88B) act as efficient and reusable catalysts for transfer hydrogenation of carbonyl compounds including bio-derived substrates.

scholarly journals Transfer Hydrogenation from 2-propanol to Acetophenone Catalyzed by [RuCl2(η6-arene)P] (P = monophosphine) and [Rh(PP)2]X (PP = diphosphine, X = Cl−, BF4−) Complexes

Catalysts ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 162 ◽  
Author(s):  
Alberto Mannu ◽  
Arnald Grabulosa ◽  
Salvatore Baldino
Keyword(s):  
Transition Metals ◽  
Carbonyl Compounds ◽  
The Other ◽  
Transfer Hydrogenation ◽  
Chiral Alcohols ◽  
High Importance ◽  
Bidentate Phosphine ◽  
Turn Over Frequency ◽  
Turn Over ◽  
Reduction Of Ketones

The reduction of ketones through homogeneous transfer hydrogenation catalyzed by transition metals is one of the most important routes for obtaining alcohols from carbonyl compounds. The interest of this method increases when opportune catalytic precursors are able to perform the transformation in an asymmetric fashion, generating enantiomerically enriched chiral alcohols. This reaction has been extensively studied in terms of catalysts and variety of substrates. A large amount of information about the possible mechanisms is available nowadays, which has been of high importance for the development of systems with excellent outcomes in terms of conversion, enantioselectivity and Turn Over Frequency. On the other side, many mechanistic aspects are still unclear, especially for those catalytic precursors which have shown only moderate performances in transfer hydeogenation. This is the case of neutral [RuCl2(η6-arene)(P)] and cationic [Rh(PP)2]X (X = anion; P and PP = mono- and bidentate phosphine, respectively) complexes. Herein, a summary of the known information about the Transfer Hydrogenation catalyzed by these complexes is provided with a continuous focus on the more relevant mechanistic features.

Transfer hydrogenation of alkynes into alkenes by ammonia borane over Pd-MOF catalysts

2020 ◽  
Vol 49 (16) ◽  
pp. 5024-5028 ◽  
Author(s):  
Vasudeva Rao Bakuru ◽  
Debabrata Samanta ◽  
Tapas Kumar Maji ◽  
Suresh Babu Kalidindi
Keyword(s):  
Ammonia Borane ◽  
Transfer Hydrogenation ◽  
Selective Transformation ◽  
Protic Solvents ◽  
Efficient Transfer

Ammonia borane with both hydridic and protic hydrogens in its structure acted as an efficient transfer hydrogenation agent for selective transformation of alkynes into alkenes in non-protic solvents.

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