Cycloadditions, Quiz!
Questions
From the
2+2 photochemistry
page:
Is the formerHOMO-HOMO (the orbitals with the three 'black' electrons) interaction beneficial in the ethene*/ethene reaction?
From the
ketene
page:
What breaks up the separation between the C=C pi* and the C=O pi* in the transition state?
What is the product of the ketene reaction for which the transition state is shown?
click here
cis-2,3-dimethylcyclobutanone
trans-2,3-dimethylcyclobutanone
The picture shows the LUMO of vinyl aldehyde (click it for VRML version). The oxygen atom points upwards. Use this picture to explain the preference for the
endo
product formation in the reaction with cyclopentadiene.
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and
the answers!
