ChemInform Abstract: NEW FUNCTIONS OF (ARENE)TRICARBONYLCHROMIUM(0) COMPLEXES AS HYDROGENATION CATALYSTS: STEREOSPECIFIC SEMIHYDROGENATION OF ALKYNES AND HIGHLY CHEMOSELECTIVE HYDROGENATION OF α,β-UNSATURATED CARBONYL COMPOUNDS

1985 ◽  
Vol 16 (36) ◽  
Author(s):  
M. SODEOKA ◽  
M. SHIBASAKI
Keyword(s):  
Carbonyl Compounds ◽  
Hydrogenation Catalysts ◽  
Chemoselective Hydrogenation

scholarly journals Robust and efficient hydrogenation of carbonyl compounds catalysed by mixed donor Mn(I) pincer complexes

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Wenjun Yang ◽  
Ivan Yu. Chernyshov ◽  
Robin K. A. van Schendel ◽  
Manuela Weber ◽  
Christian Müller ◽  
...  
Keyword(s):  
Noble Metal ◽  
Crucial Role ◽  
Carbonyl Compounds ◽  
Catalytic Performance ◽  
Hydrogen Atmosphere ◽  
Pincer Complexes ◽  
Catalyst Activation ◽  
Hydrogenation Catalysts ◽  
Induction Times

AbstractAny catalyst should be efficient and stable to be implemented in practice. This requirement is particularly valid for manganese hydrogenation catalysts. While representing a more sustainable alternative to conventional noble metal-based systems, manganese hydrogenation catalysts are prone to degrade under catalytic conditions once operation temperatures are high. Herein, we report a highly efficient Mn(I)-CNP pre-catalyst which gives rise to the excellent productivity (TOF° up to 41 000 h−1) and stability (TON up to 200 000) in hydrogenation catalysis. This system enables near-quantitative hydrogenation of ketones, imines, aldehydes and formate esters at the catalyst loadings as low as 5–200 p.p.m. Our analysis points to the crucial role of the catalyst activation step for the catalytic performance and stability of the system. While conventional activation employing alkoxide bases can ultimately provide catalytically competent species under hydrogen atmosphere, activation of Mn(I) pre-catalyst with hydride donor promoters, e.g. KHBEt3, dramatically improves catalytic performance of the system and eliminates induction times associated with slow catalyst activation.

Chemoselective hydrogenation of α, β-unsaturated carbonyl compounds on AlPO4 supported Rh catalysts

1984 ◽  
Vol 26 (3-4) ◽  
pp. 447-451 ◽  
Author(s):  
J. A. Cabello ◽  
J. M. Campelo ◽  
A. Garcia ◽  
D. Luna ◽  
J. M. Matinas
Keyword(s):  
Carbonyl Compounds ◽  
Chemoselective Hydrogenation

NiAl and CoAl materials derived from takovite-like LDHs and related structures as efficient chemoselective hydrogenation catalysts

2014 ◽  
Vol 4 (1) ◽  
pp. 179-189 ◽  
Author(s):  
Constantin Rudolf ◽  
Brindusa Dragoi ◽  
Adrian Ungureanu ◽  
Alexandru Chirieac ◽  
Sébastien Royer ◽  
...  
Keyword(s):  
Hydrogenation Catalysts ◽  
Chemoselective Hydrogenation

scholarly journals “Polysiloxane-Pd” Nanocomposites as Recyclable Chemoselective Hydrogenation Catalysts.

ChemInform ◽  
2004 ◽  
Vol 35 (44) ◽  
Author(s):  
Bhanu P. S. Chauhan ◽  
Jitendra S. Rathore ◽  
Tariq Bandoo
Keyword(s):  
Hydrogenation Catalysts ◽  
Chemoselective Hydrogenation

Chemoselective hydrogenation of carbonyl compounds over heterogeneous catalysts

2005 ◽  
Vol 292 ◽  
pp. 1-49 ◽  
Author(s):  
P. Mäki-Arvela ◽  
J. Hájek ◽  
T. Salmi ◽  
D.Yu. Murzin
Keyword(s):  
Carbonyl Compounds ◽  
Heterogeneous Catalysts ◽  
Chemoselective Hydrogenation
Sign in / Sign up

Export Citation Format

Share Document