Answered: Draw beta-D-galactopyranose and…

Draw beta-D-galactopyranose and beta-D-mannopyranose in their chair conformations. Label the axial and equatorial positions.

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter25: Biomolecules: Carbohydrates

Section25.5: Cyclic Structures Of Monosaccharides: Anomers

Problem 13P

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Concept explainers

Alkanes and Cycloalkanes

Alkanes are saturated organic compounds which are made up of C and H atoms. Alkanes have the general formula of CnH2n+2. Alkane contains sp3 hybridized carbon atoms with four sigmas (σ) bonds & every hydrogen atom is connected with one of the carbon atoms. The size of the alkane could be determined by the number of carbon atoms located in it.

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Draw beta-D-galactopyranose and beta-D-mannopyranose in their chair conformations. Label the axial and equatorial positions.

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The following statements about the chair conformation of D glucopyranose are true EXCEPT * a. The axial positions are occupied by hydroxyl groups b. It is the more stable configuration of D-glucopyranose c. The Equatorial substituents about the ring are staggered so that they alternately extend above and below the mean plane of the ring d. The equatorial positions are occupied by hydroxyl groups
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