The critical anomeric effect and specific optical rotation in cyclic carbohydrates are closely governed strictly by the stereochemistry precisely at C-1. Which exact relative configuration perfectly c

Question

The critical anomeric effect and specific optical rotation in cyclic carbohydrates are closely governed strictly by the stereochemistry precisely at C-1. Which exact relative configuration perfectly characterizes $\alpha$ -D-glucopyranose in a standard correctly drawn Haworth projection?

Prashant Kotian · Accepted Answer

Correct answer: B. In standard correctly oriented Haworth projections of D-sugars, the large group located at consistently points up. By strict definition, the -anomer places the highly reactive anomeric group down at (trans relationship), whereas the -anomer strictly places it up (cis relationship).

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