The chiral carbons in , and has to be identified. Concept introduction: Chiral carbon: Chiral carbon is the one which is bonded to four different molecules or groups. Monosaccharides: Monosaccharides forms cyclic hemiacetals, the oxygen atom in the group of second last carbon (from bottom) attacks the carbonyl group of the same compound. The carbon atom in carbonyl group of monosaccharides is called anomeric carbon. Haworth projection is used to represent sugars in their cyclic hemiacetal forms. In Haworth projection, -indicates, the group of anomeric carbon and substituent on the carbon is trans to each other. -indicates, the group of anomeric carbon and substituent on the carbon is cis to each other.

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Chapter 20.4, Problem 20.12P

Interpretation Introduction

Interpretation:

The chiral carbons in , and has to be identified.

Concept introduction:

Chiral carbon:

Chiral carbon is the one which is bonded to four different molecules or groups.

Monosaccharides:

Monosaccharides forms cyclic hemiacetals, the oxygen atom in the group of second last carbon (from bottom) attacks the carbonyl group of the same compound.

The carbon atom in carbonyl group of monosaccharides is called anomeric carbon.

Haworth projection is used to represent sugars in their cyclic hemiacetal forms.

In Haworth projection,

-indicates, the group of anomeric carbon and substituent on the carbon is trans to each other. -indicates, the group of anomeric carbon and substituent on the carbon is cis to each other.

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