Ruthenium-Catalyzed One-Pot Tandem Isomerization-Transfer Hydrogenation Reactions of γ-Trifluoromethylated Allylic Alcohols and β-Trifluoromethylated Enones

2013 ◽  
Vol 355 (7) ◽  
pp. 1394-1402 ◽  
Author(s):  
Vincent Bizet ◽  
Xavier Pannecoucke ◽  
Jean-Luc Renaud ◽  
Dominique Cahard
Keyword(s):  
Transfer Hydrogenation ◽  
Allylic Alcohols ◽  
One Pot ◽  
Hydrogenation Reactions

Ruthenium-catalyzed redox isomerization/transfer hydrogenation in organic and aqueous media: A one-pot tandem process for the reduction of allylic alcohols

2009 ◽  
Vol 11 (12) ◽  
pp. 1992 ◽  
Author(s):  
Victorio Cadierno ◽  
Pascale Crochet ◽  
Javier Francos ◽  
Sergio E. García-Garrido ◽  
José Gimeno ◽  
...  
Keyword(s):  
Aqueous Media ◽  
Transfer Hydrogenation ◽  
Allylic Alcohols ◽  
One Pot ◽  
Tandem Process ◽  
Redox Isomerization

ChemInform Abstract: Ruthenium-Catalyzed Redox Isomerization/Transfer Hydrogenation in Organic and Aqueous Media: A One-Pot Tandem Process for the Reduction of Allylic Alcohols.

ChemInform ◽  
2010 ◽  
Vol 41 (18) ◽  
Author(s):  
Victorio Cadierno ◽  
Pascale Crochet ◽  
Javier Francos ◽  
Sergio E. Garcia-Garrido ◽  
Jose Gimeno ◽  
...  
Keyword(s):  
Aqueous Media ◽  
Transfer Hydrogenation ◽  
Allylic Alcohols ◽  
One Pot ◽  
Tandem Process ◽  
Redox Isomerization

Graphene hydrogel supported palladium nanoparticles as an efficient and reusable heterogeneous catalysts in the transfer hydrogenation of nitroarenes using ammonia borane as a hydrogen source

2018 ◽  
Vol 90 (2) ◽  
pp. 327-335 ◽  
Author(s):  
Paria Eghbali ◽  
Bilal Nişancı ◽  
Önder Metin
Keyword(s):  
Heterogeneous Catalysts ◽  
Pd Nanoparticles ◽  
Ammonia Borane ◽  
Catalytic Performance ◽  
Transfer Hydrogenation ◽  
Bet Surface Area ◽  
Tandem Reactions ◽  
One Pot ◽  
Hydrogenation Reactions ◽  
Catalytic Cycles

Abstract Addressed herein is a facile one-pot synthesis of graphene hydrogel (GHJ) supported Pd nanoparticles (NPs), namely Pd-GHJ nanocomposites, via a novel method that comprises the combination of hydrothermal treatment and polyol reduction protocols in water. The structure Pd-GHJ nanocomposites were characterized by TEM, HR-TEM, XRD, XPS, Raman spectroscopy and BET surface area analysis. Then, Pd-GHJ nanocomposites were used as a heterogeneous catalysts in the tandem dehydrogenation of ammonia borane and hydrogenation of nitroarenes (Ar–NO2) to anilines (Ar–NH2) in the water/methanol mixture at room temperature. A variety of Ar–NO2 derivatives (total 9 examples) were successfully converted to the corresponding Ar–NH2 by the help of Pd-GHJ nanocomposites catalyzed tandem reactions with the conversion yields reaching up to 99% in only 20 min reaction time. Moreover, Pd-GHJ nanocomposites were demonstrated to be the reusable catalysts in the tandem reactions by preserving their initial catalytic performance after five consecutive catalytic cycles. It is believed that the presented synthesis protocol for the Pd-GHJ nanocomposites and the catalytic tandem hydrogenation reactions will make a significant contribution to the catalysis and synthetic organic chemistry fields.

Influence of metal oxide and heteropoly tungustate location in mesoporous silica towards catalytic transfer hydrogenation of furfural to γ-valerolactone

2021 ◽  
Author(s):  
Bolla Srinivasarao ◽  
Yogita Y ◽  
Dhana Lakshmi Darsi ◽  
Krishna Kumari Pamula ◽  
N. Lingaiah
Keyword(s):  
Mesoporous Silica ◽  
Metal Oxide ◽  
Transfer Hydrogenation ◽  
Catalytic Transfer Hydrogenation ◽  
One Pot ◽  
Catalytic Transfer

One pot conversion of furfural to -valerolactone by transfer hydrogenation has been achieved over bifunctional Zr and TPA located in mesoporous silica catalysts. Different catalysts with TPA and ZrO2 located...

Catch It If You Can: Copper-Catalyzed (Transfer) Hydrogenation Reactions and Coupling Reactions by Intercepting Reactive Intermediates Thereof

Synthesis ◽  
2020 ◽  
Vol 52 (17) ◽  
pp. 2483-2496
Author(s):  
Johannes F. Teichert ◽  
Lea T. Brechmann
Keyword(s):  
Coupling Reaction ◽  
Reactive Intermediates ◽  
Transfer Hydrogenation ◽  
Coupling Reactions ◽  
Bond Forming ◽  
Starting Point ◽  
Bond Forming Reactions ◽  
Hydrogenation Reactions ◽  
Multicomponent Coupling Reactions ◽  
Trapping Reactions

The key reactive intermediate of copper(I)-catalyzed alkyne semihydrogenations is a vinylcopper(I) complex. This intermediate can be exploited as a starting point for a variety of trapping reactions. In this manner, an alkyne semihydrogenation can be turned into a dihydrogen­-mediated coupling reaction. Therefore, the development of copper-catalyzed (transfer) hydrogenation reactions is closely intertwined with the corresponding reductive trapping reactions. This short review highlights and conceptualizes the results in this area so far, with H2-mediated carbon–carbon and carbon–heteroatom bond-forming reactions emerging under both a transfer hydrogenation setting as well as with the direct use of H2. In all cases, highly selective catalysts are required that give rise to atom-economic multicomponent coupling reactions with rapidly rising molecular complexity. The coupling reactions are put into perspective by presenting the corresponding (transfer) hydrogenation processes first.1 Introduction: H2-Mediated C–C Bond-Forming Reactions2 Accessing Copper(I) Hydride Complexes as Key Reagents for Coupling Reactions; Requirements for Successful Trapping Reactions 3 Homogeneous Copper-Catalyzed Transfer Hydrogenations4 Trapping of Reactive Intermediates of Alkyne Transfer Semi­hydrogenation Reactions: First Steps Towards Hydrogenative Alkyne Functionalizations 5 Copper(I)-Catalyzed Alkyne Semihydrogenations6 Copper(I)-Catalyzed H2-Mediated Alkyne Functionalizations; Trapping of Reactive Intermediates from Catalytic Hydrogenations6.1 A Detour: Copper(I)-Catalyzed Allylic Reductions, Catalytic Generation of Hydride Nucleophiles from H2 6.2 Trapping with Allylic Electrophiles: A Copper(I)-Catalyzed Hydro­allylation Reaction of Alkynes 6.3 Trapping with Aryl Iodides7 Conclusion

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