How Many Different Aldols $\beta$ -Hydroxyaldehydes), Including Constitutional Isomers and Stereoisomers, Are Formed Upon Treatment

question 28

Multiple Choice

How many different aldols ( $\beta$ -hydroxyaldehydes) , including constitutional isomers and stereoisomers, are formed upon treatment of butanal with base?

• A)1
• B)2
• C)3
• D)4

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