(10 points) An unknown aldotetrose was reacted with HCN followed by reduction with H_{2} over P * d/B * aS*O_{4} to give aldopentoses A and B. Aldopentose B was reacted with HCN followed by reduction with H_{2} over over P * d/B * aS*O_{4} to give aldohexoses C and D. Aldohexose D was identified as Dglucose. a) Identify the sugars represented by A, B, C and the original unknown aldotetrose. b) Draw the Hayworth projection for sugar C, assume it is in its hemiacetal form.

(10 points) An unknown aldotetrose was reacted with HCN followed by reduction with H_{2} over P * d/B * aSO_{4} to give aldopentoses A and B. Aldopentose B was reacted with HCN followed by reduction with H_{2} over over P d/B * aS*O_{4} to give aldohexoses C and D. Aldohexose D was identified as Dglucose. a) Identify the sugars represented by A, B, C and the original unknown aldotetrose. b) Draw the Hayworth projection for sugar C, assume it is in its hemiacetal form.

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter20: Carbohydrates

Section: Chapter Questions

Problem 20.58P

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Provide suitable responses for questions (a) –(j).| 6 CH2OH 4 ОН OH OH 2.
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