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Unformatted text preview: reactions to work well.] OH 4. Diels-Alder cycloaddition reaction shown below gives a single product. The reaction takes place at only one of the two carbon-carbon double bonds in the cyclic dienophile. Give the structure of the product and explain your answer. Be sure to show the stereochemistry of the product. O O CH 3 O + Single Product [This transformation was the initial step in the total synthesis of cholesterol completed by R. B. Woodward in 1951. This achievement, monumental for its time, revolutionized synthetic organic chemistry.]...
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- Fall '06
- GANEM, B