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Are these molecules conjugated?

If Org 2 has an overall theme, it’s “resonance”. Today’s post has a very simple message. Atoms with lone pairs, π bonds, radicals, and carbocations can

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s-cis and s-trans

s-cis and s-trans. What does those terms mean? Recall cis and trans. The reason Aldrich Chemical Co. can sell 99% cis-2-butene and 99% trans-2-butene in separate bottles is

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Regiochemistry In The Diels-Alder Reaction

When non-symmetrical dienes react with non-symmetrical dienophiles, two regioisomers are possible. Dienes with substituents on the terminus (“1-substituted dienes”) tend to give “1,2” products (“ortho”).

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