How the Tautomerization of a Carbohydrate Could Be Prevented

question 104

Multiple Choice

How the tautomerization of a carbohydrate could be prevented?

• A)Perform a Fischer methylation of the anomeric OH group.
• B)Perform permethylation of the carbohydrate.
• C)Treat the carbohydrate with LiAlH₄.
• D)Prepare a solution of the carbohydrate in Br₂/H₂O
• E)It is impossible to prevent tautomerization.

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