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Dienes and MO Theory

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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The Diels-Alder Reaction

Today we’ll introduce  a reaction I consider to be the most useful and powerful reaction in all of organic chemistry: the Diels-Alder reaction. But don’t take

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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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