Question

ldentify each of the following as the $\alpha$or $\beta$isomer.

Short answer

a. As the OH group is down it is $\alpha$isomer

b. As the OH group is down it is $\alpha$isomer

Step-by-step solution

Part (a) Step 1: Given Information

Part (a) Step 2: Explanation

In the $\alpha$-anomer, the hydroxyl bunch (-OH) connected to the anomeric carbon iota lies beneath the plane and on the contrary side of the $-{\mathrm{CH}}_2\mathrm{OH}$bunch joined to the carbon ring. In the given construction, the hydroxyl bunch lies beneath the plane. Thusly, it is a $\alpha$-isomer.

Part (b) Step 1: Given Information

Part (b) Step 2: Explanation

In the$\alpha$- anomer, the hydroxyl bunch (-OH) connected to the anomeric carbon iota lies beneath the plane and on the contrary side of the $-{\mathrm{CH}}_2\mathrm{OH}$bunch joined to the carbon ring. In the given construction, the hydroxyl bunch lies beneath the plane. Thusly, it is a$\alpha$ - isomer.