On Water and in Air: Fast and Highly Chemoselective Transfer Hydrogenation of Aldehydes with Iridium Catalysts

2006 ◽  
Vol 118 (40) ◽  
pp. 6870-6874 ◽  
Author(s):  
Xiaofeng Wu ◽  
Jianke Liu ◽  
Xiaohong Li ◽  
Antonio Zanotti-Gerosa ◽  
Fred Hancock ◽  
...  
Keyword(s):  
Transfer Hydrogenation ◽  
Iridium Catalysts

A Family of Active Iridium Catalysts for Transfer Hydrogenation of Ketones

2006 ◽  
Vol 25 (17) ◽  
pp. 4113-4117 ◽  
Author(s):  
Zaheer E. Clarke ◽  
Paul T. Maragh ◽  
Tara P. Dasgupta ◽  
Dmitry G. Gusev ◽  
Alan J. Lough ◽  
...  
Keyword(s):  
Transfer Hydrogenation ◽  
Iridium Catalysts

scholarly journals A Family of Active Iridium Catalysts for Transfer Hydrogenation of Ketones.

ChemInform ◽  
2006 ◽  
Vol 37 (50) ◽  
Author(s):  
Zaheer E. Clarke ◽  
Paul T. Maragh ◽  
Tara P. Dasgupta ◽  
Dmitry G. Gusev ◽  
Alan J. Lough ◽  
...  
Keyword(s):  
Transfer Hydrogenation ◽  
Iridium Catalysts

scholarly journals Iridium(NHC)-Catalyzed Sustainable Transfer Hydrogenation of CO2 and Inorganic Carbonates

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 695
Author(s):  
Yeon-Joo Cheong ◽  
Kihyuk Sung ◽  
Jin-A Kim ◽  
Yu Kwon Kim ◽  
Woojin Yoon ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
High Temperature ◽  
Carbon Sources ◽  
Transfer Hydrogenation ◽  
Suitable Choice ◽  
Iridium Catalysts ◽  
Hydrogenation Of Co2

Iridium(NHC)-catalyzed transfer hydrogenation (TH) of CO2 and inorganic carbonates with glycerol were conducted, demonstrating excellent turnover numbers (TONs) and turnover frequencies (TOFs) for the formation of formate and lactate. Regardless of carbon sources, excellent TOFs of formate were observed (CO2: 10,000 h−1 and K2CO3: 10,150 h−1). Iridium catalysts modified with the triscarbene ligand showed excellent catalytic activity at 200 °C and are a suitable choice for this transformation which requires a high temperature for high TONs of formate. On the basis of the control experiments, the transfer hydrogenation mechanism of CO2 was proposed.

On Water and in Air: Fast and Highly Chemoselective Transfer Hydrogenation of Aldehydes with Iridium Catalysts

2006 ◽  
Vol 45 (40) ◽  
pp. 6718-6722 ◽  
Author(s):  
Xiaofeng Wu ◽  
Jianke Liu ◽  
Xiaohong Li ◽  
Antonio Zanotti-Gerosa ◽  
Fred Hancock ◽  
...  
Keyword(s):  
Transfer Hydrogenation ◽  
Iridium Catalysts

Advantageous asymmetric ketone reduction with a competitive hydrogenation/transfer hydrogenation system using chiral bifunctional iridium catalysts

RSC Advances ◽  
2014 ◽  
Vol 4 (105) ◽  
pp. 61001-61004 ◽  
Author(s):  
Junki Moritani ◽  
Yoshihito Kayaki ◽  
Takao Ikariya
Keyword(s):  
Transfer Hydrogenation ◽  
Asymmetric Transfer Hydrogenation ◽  
Ketone Reduction ◽  
Iridium Catalysts ◽  
Competitive Hydrogenation ◽  
Ketone Hydrogenation

Asymmetric ketone hydrogenation with bifunctional amidoiridium complexes in methanol or ethanol proceeds competitively with asymmetric transfer hydrogenation, in which the pressurised hydrogen can suppress involuntary racemisation of the product.

On Water and in Air: Fast and Highly Chemoselective Transfer Hydrogenation of Aldehydes with Iridium Catalysts.

ChemInform ◽  
2007 ◽  
Vol 38 (6) ◽  
Author(s):  
Xiaofeng Wu ◽  
Jianke Liu ◽  
Xiaohong Li ◽  
Antonio Zanotti-Gerosa ◽  
Fred Hancock ◽  
...  
Keyword(s):  
Transfer Hydrogenation ◽  
Iridium Catalysts

A High Resolution Study of Alumina Supported Iridium Catalysts

1980 ◽  
Vol 38 ◽  
pp. 202-203
Author(s):  
C. Stoeckert ◽  
B. Etherton ◽  
M. Beer ◽  
J. Gryder
Keyword(s):  
Electron Microscope ◽  
High Resolution ◽  
Metal Particles ◽  
Optical Transfer Function ◽  
Particle Sizes ◽  
Iridium Catalysts ◽  
Transmission Electron ◽  
Optical Transfer ◽  
Conventional Transmission Electron Microscope ◽  
Resolution Study

The interpretation of the activity of catalysts requires information about the sizes of the metal particles, since this has implications for the number of surface atoms available for reaction. To determine the particle dimensions we used a high resolution STEM1. Such an instrument with its simple optical transfer function is far more suitable than a conventional transmission electron microscope for the establishment of particle sizes. We report here our study on the size and number distribution of Ir particles supported on Al2O3 and also examine simple geometric models for the shape of Ir particles.

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