scholarly journals Enantioselective Ruthenium-Catalyzed Carbonyl Allylation via Alkyne–Alcohol C–C Bond-Forming Transfer Hydrogenation: Allene Hydrometalation vs Oxidative Coupling

2015 ◽  
Vol 137 (9) ◽  
pp. 3161-3164 ◽  
Author(s):  
Tao Liang ◽  
Khoa D. Nguyen ◽  
Wandi Zhang ◽  
Michael J. Krische
Keyword(s):  
Oxidative Coupling ◽  
Transfer Hydrogenation ◽  
Bond Forming ◽  
Carbonyl Allylation

scholarly journals Arene-Osmium(II) Complexes in Homogeneous Catalysis

Inorganics ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 55
Author(s):  
Pascale Crochet ◽  
Victorio Cadierno
Keyword(s):  
Homogeneous Catalysis ◽  
Review Article ◽  
Transfer Hydrogenation ◽  
Nitrile Hydration ◽  
Bond Forming ◽  
Catalytic Applications

Although the application of arene-osmium(II) complexes in homogeneous catalysis has been much less studied than that of their ruthenium analogues, different works have shown that, in some instances, a comparable or even superior effectiveness can be achieved with this particular class of compounds. This review article focuses on the catalytic applications of arene-osmium(II) complexes. Among others, transfer hydrogenation, hydrogenation, oxidation, and nitrile hydration reactions, as well as different C-C bond forming processes, are comprehensively discussed.

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

scholarly journals Enantioselective Carbonyl Allylation, Crotylation, andtert-Prenylation of Furan Methanols and Furfurals via Iridium-Catalyzed Transfer Hydrogenation

2010 ◽  
Vol 75 (5) ◽  
pp. 1795-1798 ◽  
Author(s):  
Benjamin Bechem ◽  
Ryan L. Patman ◽  
A. Stephen K. Hashmi ◽  
Michael J. Krische
Keyword(s):  
Transfer Hydrogenation ◽  
Carbonyl Allylation
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