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Chapter 8: Q4CP (page 227)

Draw a Haworth projection of D-glucose and identify it as an 伪 or 尾 anomer.

Short Answer

Expert verified

The Haworth projection of D-glucose is as follows:

Step by step solution

01

There are two anomeric forms of cyclic sugars.

The carbonyl carbon, also known as the anomeric carbon, transforms into a chiral centre with two potential configurations when a monosaccharide cycles. Anomers are a pair of stereoisomers that differ in conformation at the anomeric carbon.

The CH2OH group at the chiral centre, which denotes the D or L confi guration, is on the opposite side of the sugar ring from the OH substituent of the anomeric carbon in the 伪 anomer (C5 in hexoses). The 尾 anomer is the other variation.

02

Diagram of Haworth projection of D-glucose and identification of α or β anomer.

The sketch showing the Haworth projection of D-glucose as shown below.

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