how-does-the-orientation-of-the-alcohol-groups-attack-on-the-carbonyl-group-affe

Question

How does the orientation of the alcohol group's attack on the carbonyl group affect the formation of alpha and beta anomers?

Accepted Answer

The attack from the top side forms the alpha anomer, while the attack from the bottom side forms the beta anomer.

Answer

The attack from either side forms only the alpha anomer.

Answer

The attack from the bottom side forms the alpha anomer, while the attack from the top side forms the beta anomer.

Answer

The attack from either side forms only the beta anomer.