Question

The anomeric carbon in $D(+)$ glucose is

• A. C-1 carbon
• B. C-2 carbon
• C. C-5 carbon
• D. C-6 carbon

Answer 1

Answer: (A)

C-1 carbon

Answer 2

$D$-glucose exists in two optically active forms known as $\alpha-D-$ glucose and $\beta-D$-glucose. The two isomers are interconvertible in aqueous solution.

Carbon-$1$ in both configurations I and II is called an anomeric carbon atom.