scholarly journals Catalytic Hydrogenation of α,β-Unsaturated Carboxylic Acid Derivatives Using copper(I)/N-Heterocyclic Carbene Complexes

2018 ◽  
Author(s):  
Birte Zimmermann ◽  
Johannes Teichert

A simple and air-stable copper(I)/N-heterocyclic carbene complex enables the catalytic hydrogenation of hitherto unreactive enoates and enamides employing H2 as terminal reducing agent. This atom economic transformation replaces commonly employed hydrosilanes and can also be carried out in an asymmetric fashion.<br><br>

2018 ◽  
Author(s):  
Birte Zimmermann ◽  
Johannes Teichert

A simple and air-stable copper(I)/N-heterocyclic carbene complex enables the catalytic hydrogenation of hitherto unreactive enoates and enamides employing H2 as terminal reducing agent. This atom economic transformation replaces commonly employed hydrosilanes and can also be carried out in an asymmetric fashion.<br><br>


2019 ◽  
Vol 55 (16) ◽  
pp. 2293-2296 ◽  
Author(s):  
Birte M. Zimmermann ◽  
Sarah C. K. Kobosil ◽  
Johannes F. Teichert

A simple and air-stable copper(i)/N-heterocyclic carbene complex enables the catalytic hydrogenation of enoates and enamides, hitherto unreactive substrates employing homogeneous copper catalysis and H2 as a terminal reducing agent.


1977 ◽  
Vol 32 (5) ◽  
pp. 597-598 ◽  
Author(s):  
Walter Strohmeier ◽  
Luise Weigelt

The catalytical system, prepared from H2PtCl6 + SnCl2 · 2 H2O and the additives HBr and H2O in iso-butanol is very efficient for homogeneous hydrogenation of unsaturated esters under mild conditions. Reaction rates r up to 40 mMol · 1-1 · min-1 and turnover numbers UZ higher than 1.600 are observed.


2021 ◽  
Author(s):  
Nicholas Wiedmaier ◽  
Hartmut Schubert ◽  
Hermann A Mayer ◽  
Lars Wesemann

The ruthenium carbene pincer complex 2 was synthesized treating the benzo annulated cycloheptatriene bisphosphine 1 with RuCl3. Addition of three equivalents of hydrogen to the carbocyclic carbene complex 2 was...


Zeolites ◽  
1995 ◽  
Vol 15 (1) ◽  
pp. 84
Author(s):  
H. Nakajima ◽  
T. Fujii ◽  
K. Kitagawa

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