Secondary deuterium isotope effects on formyl transfer reactions between sulfur and oxygen nucleophiles

1980 ◽  
Vol 102 (8) ◽  
pp. 2763-2768 ◽  
Author(s):  
Eric R. Pohl ◽  
D. J. Hupe
Keyword(s):  
Isotope Effects ◽  
Transfer Reactions ◽  
Deuterium Isotope Effects ◽  
Formyl Transfer

Secondary deuterium isotope effects for certain acyl transfer reactions of phenyl formates

1979 ◽  
Vol 101 (1) ◽  
pp. 169-173 ◽  
Author(s):  
Luciano Do Amaral ◽  
Marilene P. Bastos ◽  
Herbert G. Bull ◽  
Juan J. Oritz ◽  
E Cordes
Keyword(s):  
Isotope Effects ◽  
Acyl Transfer ◽  
Transfer Reactions ◽  
Deuterium Isotope Effects ◽  
Acyl Transfer Reactions

Trajectories of proton transfer reactions. Experimental determination of the magnitude of primary deuterium isotope effects for proton-transfers occuring at acute angles

1988 ◽  
Vol 110 (8) ◽  
pp. 2667-2668 ◽  
Author(s):  
Dennis. Liotta ◽  
Manohar. Saindane ◽  
Liladhar. Waykole ◽  
Julie. Stephens ◽  
Judy. Grossman
Keyword(s):  
Proton Transfer ◽  
Experimental Determination ◽  
Isotope Effects ◽  
Transfer Reactions ◽  
Proton Transfers ◽  
Proton Transfer Reactions ◽  
Deuterium Isotope Effects

Nicotinamide coenzyme regeneration. The rates of some 1,4-dihydropyridine, pyridinium salt, and flavin mononucleotide hydrogen-transfer reactions

1976 ◽  
Vol 54 (19) ◽  
pp. 2974-2980 ◽  
Author(s):  
J. Bryan Jones ◽  
Keith E. Taylor
Keyword(s):  
Hydrogen Transfer ◽  
Isotope Effects ◽  
Pyridinium Salt ◽  
Transfer Reactions ◽  
Flavin Mononucleotide ◽  
Pyridinium Salts ◽  
Significant Extent ◽  
Redox Couples ◽  
Donor Acceptor ◽  
Deuterium Isotope Effects

The rates of H-transfer between various 1,4-dihydropyridines and pyridinium salts (including NADH and NAD+), and from 1,4-dihydropyridines to FMN, have been measured. The reactions are found to be sufficiently slow for H-transfer to be rate-determining to a significant extent when such Systems are applied for nicotinamide coenzyme recycling purposes. The rates of H-transfer parallel the magnitudes of the donor–acceptor redox potential differences (ΔE0′); ΔE0′ values may therefore be used as qualitative guides in formulating and selecting redox couples of NAD/H recycling value. On the basis of deuterium isotope effects, it is concluded that formation of a complex prior to H-transfer is not rate determining for 1,4-dihydropyridine–NAD+ reactions. This behavior is in contrast to that of other model alcohol dehydrogenase Systems.

ChemInform Abstract: SECONDARY DEUTERIUM ISOTOPE EFFECTS FOR CERTAIN ACYL TRANSFER REACTIONS OF PHENYL FORMATES

1979 ◽  
Vol 10 (15) ◽  
Author(s):  
L. DO AMARAL ◽  
M. P. BASTOS ◽  
H. G. BULL ◽  
J. J. ORTIZ ◽  
E. H. CORDES
Keyword(s):  
Isotope Effects ◽  
Acyl Transfer ◽  
Transfer Reactions ◽  
Deuterium Isotope Effects ◽  
Acyl Transfer Reactions
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