scholarly journals The Silicon–Hydrogen Exchange Reaction: A Catalytic σ-Bond Metathesis Approach to the Enantioselective Synthesis of Enol Silanes

2020 ◽  
Vol 142 (32) ◽  
pp. 13695-13700
Author(s):  
Hui Zhou ◽  
Han Yong Bae ◽  
Markus Leutzsch ◽  
Jennifer L. Kennemur ◽  
Diane Bécart ◽  
...  
Keyword(s):  
Exchange Reaction ◽  
Hydrogen Exchange ◽  
Enantioselective Synthesis

Hydrogen exchange and isomerization in ortho substituted benzamides. On the question of free rotation in an N-protonated amide

1979 ◽  
Vol 57 (22) ◽  
pp. 2896-2901 ◽  
Author(s):  
Robert A. McClelland ◽  
William F. Reynolds
Keyword(s):  
Exchange Reaction ◽  
Rate Constants ◽  
Hydrogen Exchange ◽  
Isomerization Reaction ◽  
Free Rotation ◽  
Bond Rotation ◽  
Diffusion Limited ◽  
Deprotonation Reaction ◽  
Substituted Benzamides ◽  
Acid Catalyzed

Rate constants have been obtained for the acid-catalyzed N–H exchange of N-methyl, 2,N-dimethyl, and 2,4,6,N-tetramethylbenzamide and the acid-catalyzed isomerization of the three corresponding N,N-dimethylbenzamides. The ratio [Formula: see text] increases significantly with increased number of ortho methyl substituents. This is explained in terms of a suggestion of Perrin, that C—N bond rotation is not completely free in the N-protonated amide, since it must compete with a diffusion limited deprotonation reaction. The isomerization reaction, which requires such a rotation, is therefore slowed by ortho methyl substituents which hinder rotation, relative to the exchange reaction, which does not require rotation.

Hot-atom mechanism in hydrogen exchange reaction on the Ir{100} surface

2000 ◽  
Vol 323 (5-6) ◽  
pp. 586-593 ◽  
Author(s):  
Michio Okada ◽  
Kousuke Moritani ◽  
Mamiko Nakamura ◽  
Toshio Kasai ◽  
Yoshitada Murata
Keyword(s):  
Exchange Reaction ◽  
Hydrogen Exchange

State-to-state dynamics of the hydrogen exchange reaction

1986 ◽  
Vol 18 (9) ◽  
pp. 937-948 ◽  
Author(s):  
James J. Valentini ◽  
Daniel P. Gerrity
Keyword(s):  
Exchange Reaction ◽  
Hydrogen Exchange

scholarly journals Geometric Phase Appears in the Ultracold Hydrogen Exchange Reaction

2015 ◽  
Vol 115 (15) ◽  
Author(s):  
B. K. Kendrick ◽  
Jisha Hazra ◽  
N. Balakrishnan
Keyword(s):  
Exchange Reaction ◽  
Geometric Phase ◽  
Hydrogen Exchange
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