Consider the formation of an osazone derivative from D-glucose. How many equivalents of phenylhydraz — Biomolecules Chemistry Question

💡 Solution & Explanation

Osazone formation consumes 3 equivalents of phenylhydrazine. The first forms a standard hydrazone at C-1. The second oxidizes the adjacent C-2 hydroxyl to a ketone. The third condenses with this new C-2 ketone to form the final osazone, completely destroying the C-2 stereocenter.