3. During the first total synthesis of chelidonine, a cytotoxic natural product isolated from the root of Chelidonium majus, the investigators used only heat to achieve the following transformation.? This transformation is believed to occur via two successive pericyclic processes (an electrocyclic ring- opening reaction, followed by a Diels-Alder cycloaddition). Draw the mechanism as described. R. R
3. During the first total synthesis of chelidonine, a cytotoxic natural product isolated from the root of Chelidonium majus, the investigators used only heat to achieve the following transformation.? This transformation is believed to occur via two successive pericyclic processes (an electrocyclic ring- opening reaction, followed by a Diels-Alder cycloaddition). Draw the mechanism as described. R. R
Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
Chapter19: Eas: Electrophilic Aromatic Substitution
Section: Chapter Questions
Problem 17E
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6
![3. During the first total synthesis of chelidonine, a cytotoxic natural product isolated from the root of
Chelidonium majus, the investigators used only heat to achieve the following transformation.? This
transformation is believed to occur via two successive pericyclic processes (an electrocyclic ring-
opening reaction, followed by a Diels-Alder cycloaddition). Draw the mechanism as described.
R.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F254da859-2673-4dbb-a343-2b4a2dc3ad77%2Fd85f033f-f367-4079-92e7-fa58aa1b8764%2Fafz9h4_processed.png&w=3840&q=75)
Transcribed Image Text:3. During the first total synthesis of chelidonine, a cytotoxic natural product isolated from the root of
Chelidonium majus, the investigators used only heat to achieve the following transformation.? This
transformation is believed to occur via two successive pericyclic processes (an electrocyclic ring-
opening reaction, followed by a Diels-Alder cycloaddition). Draw the mechanism as described.
R.
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