Suzuki Reaction Catalyzed by Pd(II) Anchored on Polymer in Supercritical Carbon Dioxide

2012 ◽  
Vol 466-467 ◽  
pp. 216-219
Author(s):  
Guo Zhi Fan ◽  
Zhen Xiao Duan ◽  
Min Wang
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Aryl Halide ◽  
Suzuki Reaction ◽  
Significant Loss ◽  
Palladium Chloride ◽  
Coupling Reactions ◽  
Arylboronic Acid ◽  
Wide Range ◽  
Supercritical Carbon

Palladium chloride anchored on polystyrene modified by 5-amino-1,10-phenanthroline was prepared and used as catalysts for the Suzuki cross-coupling reactions of aryl halide with arylboronic acid in supercritical carbon dioxide without use of organic solvent. The heterogeneous catalyst revealed excellent and recoverable catalytic performance for a wide range of aryl halides substrates. It can be easily separated from the reaction mixture and reused for six recycles without significant loss of catalytic activity.

Oxadiazoline and Ketoimine Palladium(II) Complexes as Highly Efficient Catalysts for Suzuki-Miyaura Cross-Coupling Reactions in Supercritical Carbon Dioxide

2011 ◽  
Vol 353 (7) ◽  
pp. 1153-1160 ◽  
Author(s):  
Ricardo R. Fernandes ◽  
Jamal Lasri ◽  
M. Fátima C. Guedes da Silva ◽  
António M. F. Palavra ◽  
José A. L. da Silva ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Highly Efficient ◽  
Cross Coupling Reactions ◽  
Supercritical Carbon

ChemInform Abstract: Palladium-Catalyzed Cross-Coupling Reactions in Supercritical Carbon Dioxide.

ChemInform ◽  
2010 ◽  
Vol 33 (6) ◽  
pp. no-no
Author(s):  
Tessa R. Early ◽  
Richard S. Gordon ◽  
Michael A. Carroll ◽  
Andrew B. Holmes ◽  
Richard E. Shute ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Cross Coupling Reactions ◽  
Palladium Catalyzed ◽  
Supercritical Carbon

Palladium-catalyzed cross-coupling reactions in supercritical carbon dioxide

1998 ◽  
pp. 1397-1398 ◽  
Author(s):  
David K. Morita ◽  
Scott A. David ◽  
William Tumas ◽  
David K. Morita ◽  
David R. Pesiri ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Cross Coupling Reactions ◽  
Palladium Catalyzed ◽  
Supercritical Carbon

Off-Nominal Component Performance in a Supercritical Carbon Dioxide Brayton Cycle

2015 ◽  
Author(s):  
Eric M. Clementoni ◽  
Timothy L. Cox ◽  
Martha A. King
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Integrated System ◽  
Design System ◽  
Working Fluid ◽  
Brayton Cycle ◽  
Wide Range ◽  
Primary Driver ◽  
Atomic Power Laboratory ◽  
Supercritical Carbon

Bechtel Marine Propulsion Corporation (BMPC) is testing a supercritical carbon dioxide (S-CO2) Brayton system at the Bettis Atomic Power Laboratory. The Integrated System Test (IST) is a simple recuperated closed Brayton cycle with a variable-speed turbine-driven compressor and a constant-speed turbine-driven generator using S-CO2 as the working fluid designed to output 100 kWe. The main focus of the IST is to demonstrate operational, control, and performance characteristics of an S-CO2 Brayton power cycle over a wide range of conditions. Therefore, the IST was designed to operate in a configuration and at conditions that support demonstrating the controllability of the closed S-CO2 Brayton cycle. Operating at high system efficiency and meeting a specified efficiency target are not requirements of the IST. However, efficiency is a primary driver for many commercial applications of S-CO2 power cycles. This paper uses operational data to evaluate component off-nominal performance and predict that design system operation would be achievable.

Pd-catalysed coupling reactions in supercritical carbon dioxide and under solventless conditions

2002 ◽  
Vol 4 (1) ◽  
pp. 64-67 ◽  
Author(s):  
Najam Shezad ◽  
Anthony A. Clifford ◽  
Christopher M. Rayner
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Coupling Reactions ◽  
Supercritical Carbon

Startup and Operation of a Supercritical Carbon Dioxide Brayton Cycle

2014 ◽  
Vol 136 (7) ◽  
Author(s):  
Eric M. Clementoni ◽  
Timothy L. Cox ◽  
Christopher P. Sprague
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Operating Temperature ◽  
Integrated System ◽  
Working Fluid ◽  
Brayton Cycle ◽  
Normal Operating ◽  
Wide Range ◽  
Startup Process ◽  
Supercritical Carbon

Bechtel Marine Propulsion Corporation (BMPC) is testing a supercritical carbon dioxide (S-CO2) Brayton system at the Bettis Atomic Power Laboratory. The 100 kWe integrated system test (IST) is a two shaft recuperated closed Brayton cycle with a variable speed turbine driven compressor and a constant speed turbine driven generator using S-CO2 as the working fluid. The IST was designed to demonstrate operational, control, and performance characteristics of an S-CO2 Brayton power cycle over a wide range of conditions. Initial operation of the IST has proven a reliable method for startup of the Brayton loop and heatup to normal operating temperature (570 °F). An overview of the startup process, including initial loop fill and charging, and heatup to normal operating temperature is presented. Additionally, aspects of the IST startup process which are related to the loop size and component design which may be different for larger systems are discussed.

Startup and Operation of a Supercritical Carbon Dioxide Brayton Cycle

2013 ◽  
Author(s):  
Eric M. Clementoni ◽  
Timothy L. Cox ◽  
Christopher P. Sprague
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Operating Temperature ◽  
Integrated System ◽  
Working Fluid ◽  
Brayton Cycle ◽  
Normal Operating ◽  
Wide Range ◽  
Startup Process ◽  
Supercritical Carbon

Bechtel Marine Propulsion Corporation (BMPC) is testing a supercritical carbon dioxide (S-CO2) Brayton system at the Bettis Atomic Power Laboratory. The 100 kWe Integrated System Test (IST) is a two shaft recuperated closed Brayton cycle with a variable speed turbine driven compressor and a constant speed turbine driven generator using S-CO2 as the working fluid. The IST was designed to demonstrate operational, control and performance characteristics of an S-CO2 Brayton power cycle over a wide range of conditions. Initial operation of the IST has proven a reliable method for startup of the Brayton loop and heatup to normal operating temperature (570°F). An overview of the startup process, including initial loop fill and charging, and heatup to normal operating temperature is presented. Additionally, aspects of the IST startup process which are related to the loop size and component design which may be different for larger systems are discussed.

Use of fluorinated palladium sources for efficient Pd-catalysed coupling reactions in supercritical carbon dioxide

1999 ◽  
Vol 40 (11) ◽  
pp. 2221-2224 ◽  
Author(s):  
Najam Shezad ◽  
R.Scott Oakes ◽  
Anthony A Clifford ◽  
Christopher M Rayner
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Coupling Reactions ◽  
Supercritical Carbon
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