Internally competitive methyl vs. methyl-d3 migration and kinetic isotope effects. Means of determining whether or not methyl migration occurs in the rate-controlling step

1972 ◽  
Vol 94 (5) ◽  
pp. 1639-1645 ◽  
Author(s):  
W. M. Schubert ◽  
Paul H. LeFevre
Keyword(s):  
Isotope Effects ◽  
Kinetic Isotope Effects ◽  
Kinetic Isotope ◽  
Rate Controlling Step

scholarly journals Comment on “Topography of the free energy landscape of Claisen–Schmidt condensation: solvent and temperature effects on the rate-controlling step” by N. D. Coutinho, H. G. Machado, V. H. Carvalho-Silva and W. A. da Silva, Phys. Chem. Chem. Phys., 2021, 23, 6738

2021 ◽  
Vol 23 (38) ◽  
pp. 22199-22201
Author(s):  
Charles L. Perrin
Keyword(s):  
Temperature Effects ◽  
Isotope Effects ◽  
Energy Landscape ◽  
Kinetic Isotope Effects ◽  
Chem Phys ◽  
Kinetic Isotope ◽  
Rate Limiting Step ◽  
Limiting Step ◽  
Rate Limiting ◽  
Rate Controlling Step

The referenced article in PCCP presents calculations of solvent kinetic isotope effects that indicate that the rate-limiting step in base-catalyzed chalcone formation in aqueous solution becomes the second enolization.

Theoretical Simulations of Heavy-Atom Kinetic Isotope Effects in Aliphatic Claisen Rearrangement

2020 ◽  
Vol 124 (51) ◽  
pp. 10678-10686
Author(s):  
Yuqing Xu ◽  
Kin-Yiu Wong ◽  
Meishan Wang ◽  
Desheng Liu ◽  
Wenkai Zhao ◽  
...  
Keyword(s):  
Claisen Rearrangement ◽  
Isotope Effects ◽  
Heavy Atom ◽  
Kinetic Isotope Effects ◽  
Kinetic Isotope ◽  
Theoretical Simulations

Direct dynamics calculations of reaction rate and kinetic isotope effects in enzyme catalysed reactions

2002 ◽  
Vol 122 ◽  
pp. 223-242 ◽  
Author(s):  
Gary Tresadern ◽  
Sara Nunez ◽  
Paul F. Faulder ◽  
Hong Wang ◽  
Ian H. Hillier ◽  
...  
Keyword(s):  
Reaction Rate ◽  
Isotope Effects ◽  
Kinetic Isotope Effects ◽  
Direct Dynamics ◽  
Kinetic Isotope

Interpretation of Transient-State Kinetic Isotope Effects†

Biochemistry ◽  
1996 ◽  
Vol 35 (1) ◽  
pp. 83-88 ◽  
Author(s):  
Harvey F. Fisher ◽  
Swapan K. Saha
Keyword(s):  
Isotope Effects ◽  
Transient State ◽  
Kinetic Isotope Effects ◽  
Kinetic Isotope ◽  
State Kinetic
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