Chapter 16 Notes

Chapter 16 Notes - C hapter 16 Notes Carbohydrates 16.1...

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Chapter 16 Notes – Carbohydrates 16.1 – Classification of Carbohydrates - Polyhydroxy aldehydes are called aldoses - Polyhydroxy ketones are called ketoses - Monosaccharides are classified according to the number of carbons they contain, using prefixes to designate (tri, tetra, penta…) 16.2 – The D and L Notation - If the lowest priority substituent is on a vertical bond, clockwise is R and vise versa - If the lowest priority substituent is on a horizontal bond, the arrow is opposite in direction and S becomes R and vise versa - If the OH group attached to the bottom-most asymmetric center is on the right, the compound is a D -sugar. If it’s on the left, it’s an L -sugar. - D corresponds to R and L corresponds to S 16.3 – Configurations of Aldoses - Diastereomers that differ in configuration at only one asymmetric center are called epimers 16.4 – Configurations of Ketoses - Naturally occurring ketoses have the ketone group in the 2-position - A ketose has one fewer asymmetric center than does an aldose with the
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This note was uploaded on 09/12/2011 for the course CHEM 1315 taught by Professor Unknown during the Spring '07 term at Georgia Tech.

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Chapter 16 Notes - C hapter 16 Notes Carbohydrates 16.1...

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