Catalytic transfer hydrogenation of biomass-derived 5-hydroxymethyl furfural to the building block 2,5-bishydroxymethyl furan

2016 ◽  
Vol 18 (4) ◽  
pp. 1080-1088 ◽  
Author(s):  
Weiwei Hao ◽  
Weifeng Li ◽  
Xing Tang ◽  
Xianhai Zeng ◽  
Yong Sun ◽  
...  
Keyword(s):  
Building Block ◽  
Hydrogen Donor ◽  
Transfer Hydrogenation ◽  
Catalytic Transfer Hydrogenation ◽  
Hydroxymethyl Furfural ◽  
Catalytic Transfer ◽  
Mpv Reduction

Catalytic transfer hydrogenation of biomass-derived HMF to the building block BHMF via MPV reduction over ZrO(OH)2 using ethanol as the hydrogen donor.

Palladium-catalyzed simple and efficient hydrogenative cleavage of azo compounds using recyclable polymer-supported formate

2005 ◽  
Vol 83 (5) ◽  
pp. 517-520 ◽  
Author(s):  
Keelara Abiraj ◽  
Gejjalagere R Srinivasa ◽  
D Channe Gowda
Keyword(s):  
Functional Groups ◽  
Room Temperature ◽  
Hydrogen Donor ◽  
Transfer Hydrogenation ◽  
Azo Compounds ◽  
Catalytic Transfer Hydrogenation ◽  
Palladium Catalyzed ◽  
Catalytic Transfer ◽  
Polymer Supported

Palladium-catalyzed room temperature transfer hydrogenation of azo compounds using recyclable polymer-supported formate as the hydrogen donor produces corresponding amine(s) in excellent yields (88%–98%). This method was found to be highly facile with selectivity over a number of other functional groups such as halogen, alkene, nitrile, carbonyl, amide, methoxy, and hydroxyl.Key words: azo compounds, catalytic transfer hydrogenation, polymer-supported formate, 10% Pd-C, amines.

Catalytic transfer hydrogenation of biomass-derived 5-hydroxymethylfurfural into 2,5-bis(hydroxymethyl)furan over tunable Zr-based bimetallic catalysts

2018 ◽  
Vol 8 (17) ◽  
pp. 4474-4484 ◽  
Author(s):  
Junnan Wei ◽  
Xuejuan Cao ◽  
Ting Wang ◽  
Huai Liu ◽  
Xing Tang ◽  
...  
Keyword(s):  
Bimetallic Catalysts ◽  
Transfer Hydrogenation ◽  
Catalytic Transfer Hydrogenation ◽  
Highly Efficient ◽  
Catalytic Transfer ◽  
Mpv Reduction

ZrBa-SBA is highly efficient for the MPV reduction of HMF to BHMF, as the etherification of BHMF was suppressed.

scholarly journals Catalytic Transfer Hydrogenation and Acid Reactions of Furfural and 5-(Hydroxymethyl)Furfural over Hf-TUD-1 Type Catalysts

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7203
Author(s):  
Margarida M. Antunes ◽  
Andreia F. Silva ◽  
Carolina D. Bernardino ◽  
Auguste Fernandes ◽  
Filipa Ribeiro ◽  
...  
Keyword(s):  
Kinetic Modelling ◽  
Transfer Hydrogenation ◽  
Catalytic Transfer Hydrogenation ◽  
Reaction Conditions ◽  
Renewable Chemicals ◽  
Hydroxymethyl Furfural ◽  
Platform Chemicals ◽  
Initial Substrate ◽  
Ordered Mesoporous ◽  
Catalytic Transfer

Heterogeneous catalysis, which has served well the petrochemical industry, may valuably contribute towards a bio-based economy by sustainably enabling selective reactions to renewable chemicals. Carbohydrate-containing matter may be obtained from various widespread sources and selectively converted to furanic platform chemicals: furfural (Fur) and 5-(hydroxymethyl)furfural (Hmf). Valuable bioproducts may be obtained from these aldehydes via catalytic transfer hydrogenation (CTH) using alcohols as H-donors under relatively moderate reaction conditions. Hafnium-containing TUD-1 type catalysts were the first of ordered mesoporous silicates explored for the conversion of Fur and Hmf via CTH/alcohol strategies. The materials promoted CTH and acid reactions leading to the furanic ethers. The bioproducts spectrum was broader for the reaction of Fur than of Hmf. A Fur reaction mechanism based on literature data was discussed and supported by kinetic modelling. The influence of the Hf loading and reaction conditions (catalyst load, type of alcohol H-donor, temperature, initial substrate concentration) on the reaction kinetics was studied. The reaction conditions were optimized to maximize the yields of 2-(alkoxymethyl)furan ethers formed from Fur; up to 63% yield was reached at 88% Fur conversion, 4 h/150 °C, using Hf-TUD-1(75), which was a stable catalyst. The Hf-TUD-1(x) catalysts promoted the selective conversion of Hmf to bis(2-alkoxymethyl)furan; e.g., 96% selectivity at 98% Hmf conversion, 3 h/170 °C for Hf-TUD-1(50).

Reductive Cleavage of Azo Compounds Catalysed by Commercial Zinc Dust and Hydrazinium Monoformate as a New Hydrogen Donor for Heterogeneous Catalytic Transfer Hydrogenation

2002 ◽  
Vol 2002 (8) ◽  
pp. 384-385 ◽  
Author(s):  
Shankare Gowda ◽  
K. Abiraj ◽  
D. Channe Gowda
Keyword(s):  
Zinc Dust ◽  
Reductive Cleavage ◽  
Hydrogen Donor ◽  
Transfer Hydrogenation ◽  
Azo Compounds ◽  
Catalytic Transfer Hydrogenation ◽  
Heterogeneous Catalytic ◽  
Catalytic Transfer ◽  
Reflux Temperature

Azo compounds are reductively cleaved to amine/s at reflux temperature within 15 min by employing less expensive commercial zinc dust and hydrazinium monoformate, a new hydrogen donor for catalytic transfer hydrogenation.

Catalytic transfer hydrogenation of azobenzene by low-valent nickel complexes: a route to 1,2-disubstituted benzimidazoles and 2,4,5-trisubstituted imidazolines

2016 ◽  
Vol 45 (25) ◽  
pp. 10389-10401 ◽  
Author(s):  
Daniel A. Zurita ◽  
Marcos Flores-Alamo ◽  
Juventino J. García
Keyword(s):  
Nickel Complexes ◽  
Hydrogen Donor ◽  
Transfer Hydrogenation ◽  
Catalytic Transfer Hydrogenation ◽  
One Pot ◽  
One Pot Synthesis ◽  
Catalytic Transfer ◽  
Low Valent ◽  
The One

The one-pot synthesis of 1,2-disubstituted benzimidazoles by the transfer hydrogenation of azobenzene, using benzylamine as a hydrogen donor is reported, catalyzed by 2 mol% of [Ni(COD)2] : dippe.

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