Iridium-catalyzed transfer hydrogenation of nitroarenes to anilines

2015 ◽  
Vol 39 (7) ◽  
pp. 5360-5365 ◽  
Author(s):  
Shujie Chen ◽  
Guoping Lu ◽  
Chun Cai
Keyword(s):  
High Activity ◽  
Catalytic System ◽  
Hydrogen Donor ◽  
Transfer Hydrogenation

An [Ir(cod)Cl]2/phenanthroline catalytic system shows high activity for the reduction of nitroarenes to aminoarenes using 2-propanol as a hydrogen donor.

scholarly journals Iridium-Catalyzed Transfer Hydrogenation of Ketones and Aldehydes Using Glucose as a Sustainable Hydrogen Donor

Catalysts ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 503 ◽  
Author(s):  
Masato Yoshida ◽  
Ryota Hirahata ◽  
Takayoshi Inoue ◽  
Takuya Shimbayashi ◽  
Ken-ichi Fujita
Keyword(s):  
Catalytic System ◽  
Carbonyl Compounds ◽  
Hydrogen Donor ◽  
Transfer Hydrogenation ◽  
Environmentally Benign ◽  
Iridium Catalyst ◽  
Hydrogenation Reactions

A new catalytic system for transfer hydrogenation of carbonyl compounds using glucose as a hydrogen donor was developed. Various ketones and aldehydes were efficiently converted to corresponding alcohols with two equivalents of glucose in the presence of a small amount (0.1 to 1.0 mol%) of iridium catalyst that had a functional ligand. In this catalytic system, transfer hydrogenation reactions proceeded based on the cooperativity of iridium and a functional ligand. It should be noted that environmentally benign water could have been used as a solvent in the present catalytic system for the reduction of various carbonyl substrates. Furthermore, the reaction scope could be extended by using N,N-dimethylacetamide as a reaction solvent.

scholarly journals Bis-NHC–Ag/Pd(OAc)2 Catalytic System Catalyzed Transfer Hydrogenation Reaction

Catalysts ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 8
Author(s):  
Hui-Ju Chen ◽  
Chien-Cheng Chiu ◽  
Tsui Wang ◽  
Dong-Sheng Lee ◽  
Ta-Jung Lu
Keyword(s):  
Functional Groups ◽  
Catalytic System ◽  
High Efficiency ◽  
Aqueous Media ◽  
Hydrogenation Reaction ◽  
Transfer Hydrogenation ◽  
Terminal Alkynes ◽  
Wide Range ◽  
Transfer Hydrogenation Reaction

The bis-NHC–Ag/Pd(OAc)2 catalytic system (NHC = N-heterocyclic carbene), a combination of bis-NHC–Ag complex and Pd(OAc)2, was found to be a smart catalyst in the Pd-catalyzed transfer hydrogenation of various functionalized arenes and internal/terminal alkynes. The catalytic system demonstrated high efficiency for the reduction of a wide range of various functional groups such as carbonyls, alkynes, olefins, and nitro groups in good to excellent yields and high chemoselectivity for the reduction of functional groups. In addition, the protocol was successfully exploited to stereoselectivity for the transformation of alkynes to alkenes in aqueous media under air. This methodology successfully provided an alternative useful protocol for reducing various functional groups and a simple operational protocol for transfer hydrogenation.

scholarly journals Asymmetric transfer hydrogenation of prochiral ketones catalyzed by aminosulfonamide-ruthenium complexes in ionic liquid

2011 ◽  
Vol 9 (1) ◽  
pp. 175-179 ◽  
Author(s):  
Zhongqiang Zhou ◽  
Yong Sun ◽  
Aiqing Zhang
Keyword(s):  
Ionic Liquid ◽  
Catalytic System ◽  
Ruthenium Complexes ◽  
Transfer Hydrogenation ◽  
Asymmetric Transfer Hydrogenation ◽  
Prochiral Ketones

AbstractChiral aminosulfonamides containing imidazolium group were used as ligands for the ruthenium(II)-catalyzed asymmetric transfer hydrogenation of prochiral ketones in ionic liquid, affording good to excellent conversions and enantiomeric excesses. The catalytic system could be easily recovered and reused several times.

Benzothiazoline: Versatile Hydrogen Donor for Organocatalytic Transfer Hydrogenation

2015 ◽  
Vol 48 (2) ◽  
pp. 388-398 ◽  
Author(s):  
Chen Zhu ◽  
Kodai Saito ◽  
Masahiro Yamanaka ◽  
Takahiko Akiyama
Keyword(s):  
Hydrogen Donor ◽  
Transfer Hydrogenation

scholarly journals Manganese Catalyzed Asymmetric Transfer Hydrogenation of Ketones Using Chiral Oxamide Ligands

Synlett ◽  
2019 ◽  
Vol 30 (04) ◽  
pp. 503-507 ◽  
Author(s):  
Jacob Schneekönig ◽  
Kathrin Junge ◽  
Matthias Beller
Keyword(s):  
Isopropyl Alcohol ◽  
Ruthenium Catalyst ◽  
Hydrogen Donor ◽  
Transfer Hydrogenation ◽  
Asymmetric Transfer Hydrogenation ◽  
Reaction Conditions ◽  
Active Systems ◽  
Manganese Catalysts

The asymmetric transfer hydrogenation of ketones using isopropyl alcohol (IPA) as hydrogen donor in the presence of novel manganese catalysts is explored. The selective and active systems are easily generated in situ from [MnBr(CO)5] and inexpensive C 2-symmeric bisoxalamide ligands. Under the optimized reaction conditions, the Mn-derived catalyst gave higher enantioselectivity compared with the related ruthenium catalyst.

Magnesium Aluminate Supported Cu Catalyst for Selective Transfer Hydrogenation of Biomass Derived Furfural to Furfuryl Alcohol with Formic Acid as Hydrogen Donor

2019 ◽  
Vol 4 (1) ◽  
pp. 145-151 ◽  
Author(s):  
Peddinti Nagaiah ◽  
Paleti Gidyonu ◽  
Muppala Ashokraju ◽  
Madduluri Venkata Rao ◽  
Prathap Challa ◽  
...  
Keyword(s):  
Formic Acid ◽  
Furfuryl Alcohol ◽  
Hydrogen Donor ◽  
Transfer Hydrogenation ◽  
Magnesium Aluminate ◽  
Selective Transfer ◽  
Cu Catalyst

Alternative Energy Input for Transfer Hydrogenation using Iridium NHC Based Catalysts in Glycerol as Hydrogen Donor and Solvent

2012 ◽  
Vol 31 (10) ◽  
pp. 3911-3919 ◽  
Author(s):  
Arturo Azua ◽  
Jose A. Mata ◽  
Eduardo Peris ◽  
Frederic Lamaty ◽  
Jean Martinez ◽  
...  
Keyword(s):  
Alternative Energy ◽  
Energy Input ◽  
Hydrogen Donor ◽  
Transfer Hydrogenation

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.

Palladium-modified functionalized cyclodextrin as an efficient and recyclable catalyst for reduction of nitroarenes

RSC Advances ◽  
2016 ◽  
Vol 6 (10) ◽  
pp. 7950-7954 ◽  
Author(s):  
Yafei Guo ◽  
Jiuling Li ◽  
Fen Zhao ◽  
Guineng Lan ◽  
Liang Li ◽  
...  
Keyword(s):  
High Activity ◽  
Catalytic System ◽  
Sodium Borohydride ◽  
Room Temperature ◽  
Recyclable Catalyst

A kind of palladium-modified functionalized cyclodextrin catalytic system was synthesized and characterized. It showed high activity in the reduction of nitroarenes with the absence of sodium borohydride in water at room temperature.

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