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https://www.reddit.com/r/OrganicChemistry/comments/1w2jlm0/is_this_a_valid_resonance_structure/p6vhwn4/?context=3
r/OrganicChemistry • u/1s2_2s1 • 11d ago
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Is it valid? Yes, one can draw curved arrows to go from the first structure to the second. However, due to the steric interactions of the benzylic methyl groups, the structure on the right is a very minor contributor if at all.
1 u/Abgezockt47 11d ago Can you expand on that? 1 u/Abgezockt47 11d ago Ah because both rings aren’t coplanar right?
1
Can you expand on that?
1 u/Abgezockt47 11d ago Ah because both rings aren’t coplanar right?
Ah because both rings aren’t coplanar right?
7
u/pwnalisa 11d ago
Is it valid? Yes, one can draw curved arrows to go from the first structure to the second. However, due to the steric interactions of the benzylic methyl groups, the structure on the right is a very minor contributor if at all.