Experimental evaluation of transition structure geometry for an aryl bromide-alkyllithium exchange reaction: new information relevant to the reaction mechanism

1992 ◽  
Vol 114 (9) ◽  
pp. 3420-3425 ◽  
Author(s):  
Peter Beak ◽  
David J. Allen
Keyword(s):  
Reaction Mechanism ◽  
Exchange Reaction ◽  
Experimental Evaluation ◽  
Aryl Bromide ◽  
Transition Structure ◽  
New Information ◽  
Structure Geometry

An unusual abnormal Wolff rearrangement

2003 ◽  
Vol 81 (6) ◽  
pp. 517-524 ◽  
Author(s):  
Howard E Zimmerman ◽  
Pengfei Wang
Keyword(s):  
Reaction Mechanism ◽  
Ab Initio ◽  
Transition Structure ◽  
Wolff Rearrangement ◽  
Photochemical Rearrangement ◽  
Bicyclic Structure

An unusual example of the abnormal Wolff rearrangement was studied. The bicyclic structure of the reactant and intermediates precluded some mechanistic possibilities of this unusual Abnormal Wolff Rearrangement. The study involved the photochemical rearrangement of diazodehydronorbornone bearing phenyl and 2-pyridyl groups at C-7. A number of examples of interesting stereoselectivity were encountered. The mechanism was investigated by use of ab initio QST type computations which located a unique transition structure species accounting for the reaction mechanism.Key words: abnormal-Wolff, carbene, rearrangement, QM computations, reaction mechanism.

The dynamics of the Hg + Br2 reaction: elucidation of the reaction mechanism for the Br exchange reaction

2017 ◽  
Vol 19 (25) ◽  
pp. 16433-16445 ◽  
Author(s):  
P. G. Jambrina ◽  
M. Menéndez ◽  
F. J. Aoiz
Keyword(s):  
Reaction Mechanism ◽  
Exchange Reaction ◽  
Complex Dynamics ◽  
Abstraction Reaction

The mechanism of the Hg + Br2 abstraction reaction reveals a richer and more complex dynamics that that could be expected.

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