Rhodium–phosphine complex catalysts tethered on silica-supported heterogeneous metal catalysts: arene hydrogenation under atmospheric pressure

1999 ◽  
Vol 149 (1-2) ◽  
pp. 63-74 ◽  
Author(s):  
Hanrong Gao ◽  
Robert J. Angelici
Keyword(s):  
Atmospheric Pressure ◽  
Metal Catalysts ◽  
Arene Hydrogenation ◽  
Phosphine Complex

Synthetical applications of activated metal catalysts. XXV. The hydrogenolysis of some phenyl derivatives of silicon by Raney nickel

1966 ◽  
Vol 19 (10) ◽  
pp. 1897 ◽  
Author(s):  
WHF Sasse ◽  
KO Wade
Keyword(s):  
Raney Nickel ◽  
Silicon Atom ◽  
Atmospheric Pressure ◽  
Nickel Catalysts ◽  
Metal Catalysts ◽  
Derivatives Of ◽  
Related Compounds ◽  
Raney Cobalt

Tetraphenylsilane and 11 related compounds have been cleaved by treatment at atmospheric pressure with Raney nickel catalysts to give mixtures of benzene and cyclohexane. Yields exceeding 90% are obtained with degassed Raney nickel and silanes. Silanols and siloxanes are less readily spilt. The presence of methanol in the reaction mixtures retards the fission of silicon-phenyl bonds. Tetracyclo-hexylsilane, cyclohexyltrimethylsilane, and hexa(n-hexyl)disiloxane did not react detectably with Raney nickel. Raney cobalt had no effect on tetraphenylsilane. A mechanism for the new reaction is discussed which involves chemisorption via the silicon atom, ejection of a phenyl anion, and hydrogenolysis of the absorbed triphenylsilyl species.

Recyclable Single-Component Rare-Earth Metal Catalysts for Cycloaddition of CO2 and Epoxides at Atmospheric Pressure

2017 ◽  
Vol 56 (8) ◽  
pp. 4568-4575 ◽  
Author(s):  
Zhiwen Zhao ◽  
Jie Qin ◽  
Chen Zhang ◽  
Yaorong Wang ◽  
Dan Yuan ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Atmospheric Pressure ◽  
Earth Metal ◽  
Metal Catalysts ◽  
Single Component
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