Essay
The following structure was used in the synthesis of a complex natural product shown to have cytotoxic activity (Org. Lett. 2006, 5585). Show how this structure may be constructed by a Robinson annulation by indicating the necessary starting materials.
Correct Answer:

Verified
Correct Answer:
Verified
Q96: What two organic starting materials are required
Q97: What is the approximate pKa of diethyl
Q98: Which of the following reagents will quantitatively
Q99: Predict the major organic product of the
Q100: What additional starting material is needed to
Q102: Which of the following will react most
Q103: Provide the sequence of reagents needed to
Q104: Predict the structure of the expected product
Q105: What two starting materials yield OHCCH<sub>2</sub>CO<sub>2</sub>CH<sub>2</sub>CH<sub>3</sub> as
Q106: Complete the following reaction by filling in