Q. 13. 23 Draw the fischer projection of a to d of the following diagram - An Introduction to General, Organic, and Biological Chemistry

Question

Step-by-Step Solution

Answer

a. The fisher projection of Threose is :-

b. The fisher projection of Xylulose :-

c. The fisher projection of Mannose :- 

d. The fisher projection of Allose :-

Part (a) Step 1 : Given information

We have given the structures of threose and we have to draw fisher projection of it.

Part (a) Step 2 : Simplification

In a Fischer projection of Threose, the neighbouring substituents will have a syn orientation in the "threo" isomer and an anti orientation in the "erythro" isomer. 

Part (b) Step 1 : Given Information

We have given the structures of xylulose and we have to draw fisher projection of it.

Part (b) Step 2 : Simplification

In a Fischer projection of xylulose, $OH$ on adjacent carbon are in syn orientation.  

Part (c) Step 1 : Given Information

We have given the structures of mannose and we have to draw fisher projection of it.

Part (c) Step 2 : Simplification

In a Fischer projection of mannose, contains six carbon atom with $OH$ group on five carbons and orientation of $OH$ group is in opposite direction.

Part (d) Step 1 : Given information

We have given the structures of allose and we have to draw fisher projection of it.

Part (d) Step 2 : Simplification

In a Fischer projection of allose, contains six carbon atom with $OH$ group on five carbons and orientation of $OH$ group is in same direction.