TOPIC: 22. Carbohydrates

SUBTOPIC: 225. Reactions

1. Give the major product(s) of the following reaction. Show stereochemistry where appropriate.

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2. Give the major product(s) of the following reaction. Show stereochemistry where appropriate.

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3. Show how you would accomplish the following synthetic transformation. Give all reagents and isolated products.

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4. Draw the product of the following reaction.

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5. Draw the major product(s) of the following reaction.

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6. Which aldopentose would give an optically inactive diacid upon oxidation?

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7. Give an example of a reaction that shows chain shortening of a sugar.Write starting materials, reagents and products. Don't use R groups.

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8. Give an example of a reaction that shows chain lengthening of a sugar. Write starting materials, reagents and products. Don't use R groups

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9. The reaction of ribose with acidic ethanol produces a mixture of two compounds. Draw them.

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10. Draw the major product of the following reaction.

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