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Diels-Alder Reaction
Diels-Alder Reaction
17
Organic Chemistry
Undergraduate 2
06/13/2019

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Cards

Term
why the Diels-Alder reaction is called a 4 + 2 π cycloaddition
Definition
because the diene has 4 π electrons while the dienophile has 2 π electrons
Term
general reaction for Diels-Alder reaction
Definition
[image]
Term
the conformation you want the diene to be in
Definition
the s-cis conformation
Term
the conformation that canlt undergo Diels-Alder rxn
Definition
s-trans
Term
the dieneophile is most effective when...
Definition
it has an electron withdrawing group (EWG)
Term
endo rule
Definition
if the dienophile has π electrons, then the rxn will be endo
Term
the endo product
Definition
the product of a Diels-Alder rxn with the groups pointing down
Term
formation of the endo product of a Diels-Alder rxn
Definition
[image]
Term
the kinetically preferred Diels-Alder product
Definition
the endo product
Term
the thermodynamically preferred Diels-Alder product
Definition
the exo product
Term
the exo product
Definition
the product of a Diels-Alder rxn with the groups pointing up
Term
formation of the exo product of a Diels-Alder rxn
Definition
[image]
Term
your task for the Diels-Alder lab
Definition
determine whether or not the product is endo or exo
Term
first rxn in the Diels-Alder lab
Definition
[image]
Term
why you must not overheat this rxn
Definition
to avoid losing furan
Term
second rxn in the Diels-Alder lab
Definition
[image]
Term
how to obtain cyclopentadiene
Definition
by "cracking" dicyclopentadiene; this is a retro-Diels-Alder rxn
[image]
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