Table of Contents
18 Feb 1999 Concerted Reactions: Electrocyclic Processes
Some Definitions...
Some Definitions...
Some Definitions...
Example-thermal ring-opening of cyclobutenes.
Example-thermal ring-opening of cyclobutenes.
Example-thermal ring-opening of cyclobutenes.
Example-thermal ring-opening of cyclobutenes.
Example-thermal ring-opening of cyclobutenes.
Example-thermal ring-opening of cyclobutenes.
Example-thermal ring-opening of cyclobutenes.
Example-thermal ring-opening of cyclobutenes.
Example-thermal ring-opening of cyclobutenes.
Some Definitions...
Example-thermal ring-opening of cyclohexadienes.
Example-thermal ring-opening of cyclohexadienes.
Example-thermal ring-opening of cyclohexadienes.
Example-thermal ring-opening of cyclohexadienes.
Example-thermal ring-opening of cyclohexadienes.
Example-thermal ring-opening of cyclohexadienes.
Wanted....
Example-thermal ring-opening of cyclobutenes.
Reminder...
Wanted....
Example-thermal ring-opening of cyclohexadienes.
Wanted....
General Electrocyclic Reactions
General Electrocyclic Reactions
General Electrocyclic Reactions
General Electrocyclic Reactions
Disrotatory
Conrotatory
Conrotatory
Example-thermal ring-opening of cyclobutenes.
The Conservation of Orbital Symmetry
butadiene cyclobutene ?
butadiene cyclobutene ?
butadiene cyclobutene ?
butadiene cyclobutene ?
butadiene cyclobutene ?
butadiene cyclobutene ?
Example-thermal ring-opening of cyclohexadienes.
hexatriene
hexatriene
hexatriene
hexatriene
hexatriene
hexatriene
hexatriene
hexatriene
hexatriene
hexatriene
hexatriene
hexatriene
PPT Slide
PPT Slide
PPT Slide
PPT Slide
Remember...
Selection Rule for Electrocyclic Transformation
Some Definitions...
Selection Rule for Electrocyclic Transformation
Selection Rule for Electrocyclic Transformation
Selection Rule for Electrocyclic Transformation
Example... (Td = 6)
Example... (Td = 6)
Example... (Td = 6)
Example... (Td = 6)
Example... (Td = 6)
Example... (Td = 6)
Dewar Benzene
Dewar Benzene
Dewar Benzene
Dewar Benzene
Dewar Benzene
PPT Slide
Cope Rearrangement
Cope Rearrangement - 3 limiting mechs
Cope Rearrangement - 3 limiting mechs
Cope Rearrangement - 3 limiting mechs
Cope Rearrangement
Cope Rearrangement
Cope Rearrangement
Cope Rearrangement
Cope Rearrangement
Cope Rearrangement = Concerted
PPT Slide
PPT Slide
End Lecture
|