1) In the Diels-Alder reaction there are two reaction components: a DIENE (must be a conjugated diene); and a DIENOPHILE (an ene usually with electron withdrawing substituents). a. Bicyclic diene A reacts readily with appropriate alkenes by the Diels-Alder reaction, whereas diene B is totally unreactive. Explain. b. Write the three reactions and show the product for diene A reacting with dienophiles I, II, and III. Rank I, II, and III in terms of their expected reactivity in a Diels Alder reaction. Justify your assigned ranks. A B || LOCH3 III

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1) In the Diels-Alder reaction there are two reaction components: a DIENE (must be a conjugated
diene); and a DIENOPHILE (an ene usually with electron withdrawing substituents).
a. Bicyclic diene A reacts readily with appropriate alkenes by the Diels-Alder reaction, whereas
diene B is totally unreactive. Explain.
b. Write the three reactions and show the product for diene A reacting with dienophiles I, II, and
III. Rank I, II, and III in terms of their expected reactivity in a Diels Alder reaction. Justify your
assigned ranks.
A
B
||
LOCH3
III
Transcribed Image Text:1) In the Diels-Alder reaction there are two reaction components: a DIENE (must be a conjugated diene); and a DIENOPHILE (an ene usually with electron withdrawing substituents). a. Bicyclic diene A reacts readily with appropriate alkenes by the Diels-Alder reaction, whereas diene B is totally unreactive. Explain. b. Write the three reactions and show the product for diene A reacting with dienophiles I, II, and III. Rank I, II, and III in terms of their expected reactivity in a Diels Alder reaction. Justify your assigned ranks. A B || LOCH3 III
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