Destroyer Question #57

[EpicDentist]

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I am curious why the answer is E and not D, Q# 57 for Orgo section

 

[herkulease]

can you describe the question better?

I'm guessing you ahve the 2011 edition. the questions have been reshuffled so from the 2010 edition.

 

[LaughingGas]

I am curious why the answer is E and not D, Q# 57 for Orgo section

Radical stability has same trend as carbocation.
D is tertiary radical while E is allylic tertiary radical.
Allylic and Benzylic carbocation/radicals have higher stability than of the regular ones. Meaning secondary allylic/benzylic C+/ radical has similar stability to tertiary C+/radical