A new series of homogeneous metal catalysts for very rapid hydrogen isotope exchange in aromatic compounds

1972 ◽  
pp. 1172 ◽  
Author(s):  
J. L. Garnett ◽  
M. A. Long ◽  
R. F. W. Vining ◽  
T. Mole
Keyword(s):  
Aromatic Compounds ◽  
Hydrogen Isotope ◽  
Isotope Exchange ◽  
Metal Catalysts ◽  
Hydrogen Isotope Exchange

Hydrogen Isotope Exchange in Aromatic Compounds in the Presence of Raney Nickel Alloy

1979 ◽  
Vol 32 (1) ◽  
pp. 189 ◽  
Author(s):  
AC Finlayson ◽  
RKMR Kallury ◽  
RH Prager
Keyword(s):  
Benzoic Acid ◽  
Aqueous Solutions ◽  
Nickel Alloy ◽  
Raney Nickel ◽  
Aromatic Compounds ◽  
Anthranilic Acid ◽  
Hydrogen Isotope ◽  
Isotope Exchange ◽  
Hydrogen Isotope Exchange ◽  
Rapid Proton

Aromatics undergo rapid proton-deuterium or -tritium exchange in aqueous solutions containing Raney nickel alloy. The specificity of exchange in benzoic acid, anthranilic acid, pyridine and aniline is investigated by degradation and mass and N.M.R. spectrometry. Positions meta and para to carboxylate are most readily exchanged.

scholarly journals Are rate and selectivity correlated in iridium-catalysed hydrogen isotope exchange reactions?

2021 ◽  
Author(s):  
Daria S. Timofeeva ◽  
David M Lindsay ◽  
W. J. Kerr ◽  
David James Nelson
Keyword(s):  
Functional Groups ◽  
Hydrogen Isotope ◽  
Isotope Exchange ◽  
Reaction Rate ◽  
Exchange Reactions ◽  
Reaction Selectivity ◽  
Hydrogen Isotope Exchange ◽  
The Relationship

Herein we examine the relationship between reaction rate and reaction selectivity in iridium-catalysed hydrogen isotope exchange (HIE) reactions directed by Lewis basic functional groups. We have recently develped a directing...

Hydrogen isotope exchange between D2 and H2O catalyzed by platinum plate

1989 ◽  
Vol 67 (5) ◽  
pp. 857-861 ◽  
Author(s):  
Shin-Ichi Miyamoto ◽  
Tetsuo Sakka ◽  
Matae Iwasaki
Keyword(s):  
Kinetic Model ◽  
Exchange Reaction ◽  
Hydrogen Isotope ◽  
Isotope Exchange ◽  
Reaction Rate ◽  
Hydrogen Adsorption ◽  
Platinum Catalyst ◽  
Isotope Exchange Reaction ◽  
Hydrogen Isotope Exchange ◽  
Supported Platinum

The reaction rate of hydrogen isotope exchange between D2 and H2O catalyzed by platinum plate is studied. The exchange reaction is described with the kinetic model which is the modification of that for the exchange reaction catalyzed by alumina-supported platinum catalyst. For the comparison of experimental results with this model relative amount of the number of sites for hydrogen adsorption was estimated from the initial rate of hydrogen isotope exchange between H2 and D2 on the same surface. The results show that the kinetic model is applicable for the plate catalyst if the number of the sites for hydrogen absorption, which is very sensitive to the surface state of the catalyst, was estimated not from the macroscopic surface area but from our scheme. Keywords: hydrogen isotope exchange reaction, platinum plate as catalyst.

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